20673978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1109}}^1$

素因数の和:1366

約数の個数: 32

約数和(自身を含む): 44755200

約数和(自身を除く): 24081222

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 239, 478, 717, 1109, 1434, 2218, 3107, 3327, 6214, 6654, 9321, 14417, 18642, 28834, 43251, 86502, 265051, 530102, 795153, 1590306, 3445663, 6891326, 10336989, 20673978]

約数ペア:

[(1, 20673978), (2, 10336989), (3, 6891326), (6, 3445663), (13, 1590306), (26, 795153), (39, 530102), (78, 265051), (239, 86502), (478, 43251), (717, 28834), (1109, 18642), (1434, 14417), (2218, 9321), (3107, 6654), (3327, 6214)]