18870696

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{20161}}^1$

素因数の和:20186

約数の個数: 48

約数和(自身を含む): 55042260

約数和(自身を除く): 36171564

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 20161, 40322, 60483, 80644, 120966, 161288, 181449, 241932, 262093, 362898, 483864, 524186, 725796, 786279, 1048372, 1451592, 1572558, 2096744, 2358837, 3145116, 4717674, 6290232, 9435348, 18870696]

約数ペア:

[(1, 18870696), (2, 9435348), (3, 6290232), (4, 4717674), (6, 3145116), (8, 2358837), (9, 2096744), (12, 1572558), (13, 1451592), (18, 1048372), (24, 786279), (26, 725796), (36, 524186), (39, 483864), (52, 362898), (72, 262093), (78, 241932), (104, 181449), (117, 161288), (156, 120966), (234, 80644), (312, 60483), (468, 40322), (936, 20161)]