156720963

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{9781}}^1$

素因数の和:9907

約数の個数: 24

約数和(自身を含む): 245332560

約数和(自身を除く): 88611597

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 763, 2289, 5341, 9781, 16023, 29343, 68467, 205401, 479269, 1066129, 1437807, 3198387, 7462903, 22388709, 52240321, 156720963]

約数ペア:

[(1, 156720963), (3, 52240321), (7, 22388709), (21, 7462903), (49, 3198387), (109, 1437807), (147, 1066129), (327, 479269), (763, 205401), (2289, 68467), (5341, 29343), (9781, 16023)]