18890664

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{317}}^1$

素因数の和:530

約数の個数: 64

約数和(自身を含む): 51287040

約数和(自身を除く): 32396376

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 191, 312, 317, 382, 573, 634, 764, 951, 1146, 1268, 1528, 1902, 2292, 2483, 2536, 3804, 4121, 4584, 4966, 7449, 7608, 8242, 9932, 12363, 14898, 16484, 19864, 24726, 29796, 32968, 49452, 59592, 60547, 98904, 121094, 181641, 242188, 363282, 484376, 726564, 787111, 1453128, 1574222, 2361333, 3148444, 4722666, 6296888, 9445332, 18890664]

約数ペア:

[(1, 18890664), (2, 9445332), (3, 6296888), (4, 4722666), (6, 3148444), (8, 2361333), (12, 1574222), (13, 1453128), (24, 787111), (26, 726564), (39, 484376), (52, 363282), (78, 242188), (104, 181641), (156, 121094), (191, 98904), (312, 60547), (317, 59592), (382, 49452), (573, 32968), (634, 29796), (764, 24726), (951, 19864), (1146, 16484), (1268, 14898), (1528, 12363), (1902, 9932), (2292, 8242), (2483, 7608), (2536, 7449), (3804, 4966), (4121, 4584)]