128641509

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{491}}^1\times {\mathrm{677}}^1$

素因数の和:1217

約数の個数: 24

約数和(自身を含む): 190805472

約数和(自身を除く): 62163963

約数列:

[1, 3, 9, 43, 129, 387, 491, 677, 1473, 2031, 4419, 6093, 21113, 29111, 63339, 87333, 190017, 261999, 332407, 997221, 2991663, 14293501, 42880503, 128641509]

約数ペア:

[(1, 128641509), (3, 42880503), (9, 14293501), (43, 2991663), (129, 997221), (387, 332407), (491, 261999), (677, 190017), (1473, 87333), (2031, 63339), (4419, 29111), (6093, 21113)]