21907080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:212

約数の個数: 192

約数和(自身を含む): 79672320

約数和(自身を除く): 57765240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 31, 36, 39, 40, 45, 52, 60, 62, 65, 72, 78, 90, 93, 104, 117, 120, 124, 130, 151, 155, 156, 180, 186, 195, 234, 248, 260, 279, 302, 310, 312, 360, 372, 390, 403, 453, 465, 468, 520, 558, 585, 604, 620, 744, 755, 780, 806, 906, 930, 936, 1116, 1170, 1208, 1209, 1240, 1359, 1395, 1510, 1560, 1612, 1812, 1860, 1963, 2015, 2232, 2265, 2340, 2418, 2718, 2790, 3020, 3224, 3624, 3627, 3720, 3926, 4030, 4530, 4680, 4681, 4836, 5436, 5580, 5889, 6040, 6045, 6795, 7254, 7852, 8060, 9060, 9362, 9672, 9815, 10872, 11160, 11778, 12090, 13590, 14043, 14508, 15704, 16120, 17667, 18120, 18135, 18724, 19630, 23405, 23556, 24180, 27180, 28086, 29016, 29445, 35334, 36270, 37448, 39260, 42129, 46810, 47112, 48360, 54360, 56172, 58890, 60853, 70215, 70668, 72540, 78520, 84258, 88335, 93620, 112344, 117780, 121706, 140430, 141336, 145080, 168516, 176670, 182559, 187240, 210645, 235560, 243412, 280860, 304265, 337032, 353340, 365118, 421290, 486824, 547677, 561720, 608530, 706680, 730236, 842580, 912795, 1095354, 1217060, 1460472, 1685160, 1825590, 2190708, 2434120, 2738385, 3651180, 4381416, 5476770, 7302360, 10953540, 21907080]

約数ペア:

[(1, 21907080), (2, 10953540), (3, 7302360), (4, 5476770), (5, 4381416), (6, 3651180), (8, 2738385), (9, 2434120), (10, 2190708), (12, 1825590), (13, 1685160), (15, 1460472), (18, 1217060), (20, 1095354), (24, 912795), (26, 842580), (30, 730236), (31, 706680), (36, 608530), (39, 561720), (40, 547677), (45, 486824), (52, 421290), (60, 365118), (62, 353340), (65, 337032), (72, 304265), (78, 280860), (90, 243412), (93, 235560), (104, 210645), (117, 187240), (120, 182559), (124, 176670), (130, 168516), (151, 145080), (155, 141336), (156, 140430), (180, 121706), (186, 117780), (195, 112344), (234, 93620), (248, 88335), (260, 84258), (279, 78520), (302, 72540), (310, 70668), (312, 70215), (360, 60853), (372, 58890), (390, 56172), (403, 54360), (453, 48360), (465, 47112), (468, 46810), (520, 42129), (558, 39260), (585, 37448), (604, 36270), (620, 35334), (744, 29445), (755, 29016), (780, 28086), (806, 27180), (906, 24180), (930, 23556), (936, 23405), (1116, 19630), (1170, 18724), (1208, 18135), (1209, 18120), (1240, 17667), (1359, 16120), (1395, 15704), (1510, 14508), (1560, 14043), (1612, 13590), (1812, 12090), (1860, 11778), (1963, 11160), (2015, 10872), (2232, 9815), (2265, 9672), (2340, 9362), (2418, 9060), (2718, 8060), (2790, 7852), (3020, 7254), (3224, 6795), (3624, 6045), (3627, 6040), (3720, 5889), (3926, 5580), (4030, 5436), (4530, 4836), (4680, 4681)]