21539730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 128

約数和(自身を含む): 59719680

約数和(自身を除く): 38179950

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 23, 30, 31, 38, 46, 53, 57, 62, 69, 93, 95, 106, 114, 115, 138, 155, 159, 186, 190, 230, 265, 285, 310, 318, 345, 437, 465, 530, 570, 589, 690, 713, 795, 874, 930, 1007, 1178, 1219, 1311, 1426, 1590, 1643, 1767, 2014, 2139, 2185, 2438, 2622, 2945, 3021, 3286, 3534, 3565, 3657, 4278, 4370, 4929, 5035, 5890, 6042, 6095, 6555, 7130, 7314, 8215, 8835, 9858, 10070, 10695, 12190, 13110, 13547, 15105, 16430, 17670, 18285, 21390, 23161, 24645, 27094, 30210, 31217, 36570, 37789, 40641, 46322, 49290, 62434, 67735, 69483, 75578, 81282, 93651, 113367, 115805, 135470, 138966, 156085, 187302, 188945, 203205, 226734, 231610, 312170, 347415, 377890, 406410, 468255, 566835, 694830, 717991, 936510, 1133670, 1435982, 2153973, 3589955, 4307946, 7179910, 10769865, 21539730]

約数ペア:

[(1, 21539730), (2, 10769865), (3, 7179910), (5, 4307946), (6, 3589955), (10, 2153973), (15, 1435982), (19, 1133670), (23, 936510), (30, 717991), (31, 694830), (38, 566835), (46, 468255), (53, 406410), (57, 377890), (62, 347415), (69, 312170), (93, 231610), (95, 226734), (106, 203205), (114, 188945), (115, 187302), (138, 156085), (155, 138966), (159, 135470), (186, 115805), (190, 113367), (230, 93651), (265, 81282), (285, 75578), (310, 69483), (318, 67735), (345, 62434), (437, 49290), (465, 46322), (530, 40641), (570, 37789), (589, 36570), (690, 31217), (713, 30210), (795, 27094), (874, 24645), (930, 23161), (1007, 21390), (1178, 18285), (1219, 17670), (1311, 16430), (1426, 15105), (1590, 13547), (1643, 13110), (1767, 12190), (2014, 10695), (2139, 10070), (2185, 9858), (2438, 8835), (2622, 8215), (2945, 7314), (3021, 7130), (3286, 6555), (3534, 6095), (3565, 6042), (3657, 5890), (4278, 5035), (4370, 4929)]