21358492020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{2153}}^1\times {\mathrm{18371}}^1$

素因数の和:20542

約数の個数: 96

約数和(自身を含む): 66483123840

約数和(自身を除く): 45124631820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 2153, 4306, 6459, 8612, 10765, 12918, 18371, 19377, 21530, 25836, 32295, 36742, 38754, 43060, 55113, 58131, 64590, 73484, 77508, 91855, 96885, 110226, 116262, 129180, 165339, 183710, 193770, 220452, 232524, 275565, 290655, 330678, 367420, 387540, 496017, 551130, 581310, 661356, 826695, 992034, 1102260, 1162620, 1653390, 1984068, 2480085, 3306780, 4960170, 9920340, 39552763, 79105526, 118658289, 158211052, 197763815, 237316578, 355974867, 395527630, 474633156, 593291445, 711949734, 791055260, 1067924601, 1186582890, 1423899468, 1779874335, 2135849202, 2373165780, 3559748670, 4271698404, 5339623005, 7119497340, 10679246010, 21358492020]

約数ペア:

[(1, 21358492020), (2, 10679246010), (3, 7119497340), (4, 5339623005), (5, 4271698404), (6, 3559748670), (9, 2373165780), (10, 2135849202), (12, 1779874335), (15, 1423899468), (18, 1186582890), (20, 1067924601), (27, 791055260), (30, 711949734), (36, 593291445), (45, 474633156), (54, 395527630), (60, 355974867), (90, 237316578), (108, 197763815), (135, 158211052), (180, 118658289), (270, 79105526), (540, 39552763), (2153, 9920340), (4306, 4960170), (6459, 3306780), (8612, 2480085), (10765, 1984068), (12918, 1653390), (18371, 1162620), (19377, 1102260), (21530, 992034), (25836, 826695), (32295, 661356), (36742, 581310), (38754, 551130), (43060, 496017), (55113, 387540), (58131, 367420), (64590, 330678), (73484, 290655), (77508, 275565), (91855, 232524), (96885, 220452), (110226, 193770), (116262, 183710), (129180, 165339)]