1664751609

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{437287}}^1$

素因数の和:437346

約数の個数: 20

約数和(自身を含む): 2539768704

約数和(自身を除く): 875017095

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 437287, 1311861, 3935583, 11806749, 20552489, 35420247, 61657467, 184972401, 554917203, 1664751609]

約数ペア:

[(1, 1664751609), (3, 554917203), (9, 184972401), (27, 61657467), (47, 35420247), (81, 20552489), (141, 11806749), (423, 3935583), (1269, 1311861), (3807, 437287)]