21550698

素因数分解:

$2^1\times 3^7\times {\mathrm{13}}^1\times {\mathrm{379}}^1$

素因数の和:415

約数の個数: 64

約数和(自身を含む): 52348800

約数和(自身を除く): 30798102

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 243, 351, 379, 486, 702, 729, 758, 1053, 1137, 1458, 2106, 2187, 2274, 3159, 3411, 4374, 4927, 6318, 6822, 9477, 9854, 10233, 14781, 18954, 20466, 28431, 29562, 30699, 44343, 56862, 61398, 88686, 92097, 133029, 184194, 266058, 276291, 399087, 552582, 798174, 828873, 1197261, 1657746, 2394522, 3591783, 7183566, 10775349, 21550698]

約数ペア:

[(1, 21550698), (2, 10775349), (3, 7183566), (6, 3591783), (9, 2394522), (13, 1657746), (18, 1197261), (26, 828873), (27, 798174), (39, 552582), (54, 399087), (78, 276291), (81, 266058), (117, 184194), (162, 133029), (234, 92097), (243, 88686), (351, 61398), (379, 56862), (486, 44343), (702, 30699), (729, 29562), (758, 28431), (1053, 20466), (1137, 18954), (1458, 14781), (2106, 10233), (2187, 9854), (2274, 9477), (3159, 6822), (3411, 6318), (4374, 4927)]