638941806

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{1145057}}^1$

素因数の和:1145096

約数の個数: 24

約数和(自身を含む): 1429032384

約数和(自身を除く): 790090578

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 1145057, 2290114, 3435171, 6870342, 10305513, 20611026, 35496767, 70993534, 106490301, 212980602, 319470903, 638941806]

約数ペア:

[(1, 638941806), (2, 319470903), (3, 212980602), (6, 106490301), (9, 70993534), (18, 35496767), (31, 20611026), (62, 10305513), (93, 6870342), (186, 3435171), (279, 2290114), (558, 1145057)]