21261474

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1032

約数の個数: 64

約数和(自身を含む): 52577280

約数和(自身を除く): 31315806

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 31, 39, 54, 62, 78, 93, 117, 186, 234, 279, 351, 403, 558, 702, 806, 837, 977, 1209, 1674, 1954, 2418, 2931, 3627, 5862, 7254, 8793, 10881, 12701, 17586, 21762, 25402, 26379, 30287, 38103, 52758, 60574, 76206, 90861, 114309, 181722, 228618, 272583, 342927, 393731, 545166, 685854, 787462, 817749, 1181193, 1635498, 2362386, 3543579, 7087158, 10630737, 21261474]

約数ペア:

[(1, 21261474), (2, 10630737), (3, 7087158), (6, 3543579), (9, 2362386), (13, 1635498), (18, 1181193), (26, 817749), (27, 787462), (31, 685854), (39, 545166), (54, 393731), (62, 342927), (78, 272583), (93, 228618), (117, 181722), (186, 114309), (234, 90861), (279, 76206), (351, 60574), (403, 52758), (558, 38103), (702, 30287), (806, 26379), (837, 25402), (977, 21762), (1209, 17586), (1674, 12701), (1954, 10881), (2418, 8793), (2931, 7254), (3627, 5862)]