128127923

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{3389}}^1$

素因数の和:3898

約数の個数: 16

約数和(自身を含む): 160116480

約数和(自身を除く): 31988557

約数列:

[1, 7, 11, 77, 491, 3389, 3437, 5401, 23723, 37279, 37807, 260953, 1663999, 11647993, 18303989, 128127923]

約数ペア:

[(1, 128127923), (7, 18303989), (11, 11647993), (77, 1663999), (491, 260953), (3389, 37807), (3437, 37279), (5401, 23723)]