128317779

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{491639}}^1$

素因数の和:491674

約数の個数: 12

約数和(自身を含む): 191739600

約数和(自身を除く): 63421821

約数列:

[1, 3, 9, 29, 87, 261, 491639, 1474917, 4424751, 14257531, 42772593, 128317779]

約数ペア:

[(1, 128317779), (3, 42772593), (9, 14257531), (29, 4424751), (87, 1474917), (261, 491639)]