20632518

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:154

約数の個数: 96

約数和(自身を含む): 51068160

約数和(自身を除く): 30435642

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 38, 43, 46, 57, 61, 69, 86, 114, 122, 129, 138, 171, 183, 207, 258, 342, 366, 387, 414, 437, 549, 774, 817, 874, 989, 1098, 1159, 1311, 1403, 1634, 1978, 2318, 2451, 2622, 2623, 2806, 2967, 3477, 3933, 4209, 4902, 5246, 5934, 6954, 7353, 7866, 7869, 8418, 8901, 10431, 12627, 14706, 15738, 17802, 18791, 20862, 23607, 25254, 26657, 37582, 47214, 49837, 53314, 56373, 60329, 79971, 99674, 112746, 120658, 149511, 159942, 169119, 180987, 239913, 299022, 338238, 361974, 448533, 479826, 542961, 897066, 1085922, 1146251, 2292502, 3438753, 6877506, 10316259, 20632518]

約数ペア:

[(1, 20632518), (2, 10316259), (3, 6877506), (6, 3438753), (9, 2292502), (18, 1146251), (19, 1085922), (23, 897066), (38, 542961), (43, 479826), (46, 448533), (57, 361974), (61, 338238), (69, 299022), (86, 239913), (114, 180987), (122, 169119), (129, 159942), (138, 149511), (171, 120658), (183, 112746), (207, 99674), (258, 79971), (342, 60329), (366, 56373), (387, 53314), (414, 49837), (437, 47214), (549, 37582), (774, 26657), (817, 25254), (874, 23607), (989, 20862), (1098, 18791), (1159, 17802), (1311, 15738), (1403, 14706), (1634, 12627), (1978, 10431), (2318, 8901), (2451, 8418), (2622, 7869), (2623, 7866), (2806, 7353), (2967, 6954), (3477, 5934), (3933, 5246), (4209, 4902)]