21786180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:126

約数の個数: 192

約数和(自身を含む): 73156608

約数和(自身を除く): 51370428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 31, 34, 39, 51, 52, 53, 60, 62, 65, 68, 78, 85, 93, 102, 106, 124, 130, 155, 156, 159, 170, 186, 195, 204, 212, 221, 255, 260, 265, 310, 318, 340, 372, 390, 403, 442, 465, 510, 527, 530, 620, 636, 663, 689, 780, 795, 806, 884, 901, 930, 1020, 1054, 1060, 1105, 1209, 1326, 1378, 1581, 1590, 1612, 1643, 1802, 1860, 2015, 2067, 2108, 2210, 2418, 2635, 2652, 2703, 2756, 3162, 3180, 3286, 3315, 3445, 3604, 4030, 4134, 4420, 4505, 4836, 4929, 5270, 5406, 6045, 6324, 6572, 6630, 6851, 6890, 7905, 8060, 8215, 8268, 9010, 9858, 10335, 10540, 10812, 11713, 12090, 13260, 13515, 13702, 13780, 15810, 16430, 18020, 19716, 20553, 20670, 21359, 23426, 24180, 24645, 27030, 27404, 27931, 31620, 32860, 34255, 35139, 41106, 41340, 42718, 46852, 49290, 54060, 55862, 58565, 64077, 68510, 70278, 82212, 83793, 85436, 98580, 102765, 106795, 111724, 117130, 128154, 137020, 139655, 140556, 167586, 175695, 205530, 213590, 234260, 256308, 279310, 320385, 335172, 351390, 363103, 411060, 418965, 427180, 558620, 640770, 702780, 726206, 837930, 1089309, 1281540, 1452412, 1675860, 1815515, 2178618, 3631030, 4357236, 5446545, 7262060, 10893090, 21786180]

約数ペア:

[(1, 21786180), (2, 10893090), (3, 7262060), (4, 5446545), (5, 4357236), (6, 3631030), (10, 2178618), (12, 1815515), (13, 1675860), (15, 1452412), (17, 1281540), (20, 1089309), (26, 837930), (30, 726206), (31, 702780), (34, 640770), (39, 558620), (51, 427180), (52, 418965), (53, 411060), (60, 363103), (62, 351390), (65, 335172), (68, 320385), (78, 279310), (85, 256308), (93, 234260), (102, 213590), (106, 205530), (124, 175695), (130, 167586), (155, 140556), (156, 139655), (159, 137020), (170, 128154), (186, 117130), (195, 111724), (204, 106795), (212, 102765), (221, 98580), (255, 85436), (260, 83793), (265, 82212), (310, 70278), (318, 68510), (340, 64077), (372, 58565), (390, 55862), (403, 54060), (442, 49290), (465, 46852), (510, 42718), (527, 41340), (530, 41106), (620, 35139), (636, 34255), (663, 32860), (689, 31620), (780, 27931), (795, 27404), (806, 27030), (884, 24645), (901, 24180), (930, 23426), (1020, 21359), (1054, 20670), (1060, 20553), (1105, 19716), (1209, 18020), (1326, 16430), (1378, 15810), (1581, 13780), (1590, 13702), (1612, 13515), (1643, 13260), (1802, 12090), (1860, 11713), (2015, 10812), (2067, 10540), (2108, 10335), (2210, 9858), (2418, 9010), (2635, 8268), (2652, 8215), (2703, 8060), (2756, 7905), (3162, 6890), (3180, 6851), (3286, 6630), (3315, 6572), (3445, 6324), (3604, 6045), (4030, 5406), (4134, 5270), (4420, 4929), (4505, 4836)]