18874986

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3967}}^1$

素因数の和:4046

約数の個数: 32

約数和(自身を含む): 41330688

約数和(自身を除く): 22455702

約数列:

[1, 2, 3, 6, 13, 26, 39, 61, 78, 122, 183, 366, 793, 1586, 2379, 3967, 4758, 7934, 11901, 23802, 51571, 103142, 154713, 241987, 309426, 483974, 725961, 1451922, 3145831, 6291662, 9437493, 18874986]

約数ペア:

[(1, 18874986), (2, 9437493), (3, 6291662), (6, 3145831), (13, 1451922), (26, 725961), (39, 483974), (61, 309426), (78, 241987), (122, 154713), (183, 103142), (366, 51571), (793, 23802), (1586, 11901), (2379, 7934), (3967, 4758)]