643197321

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{1832471}}^1$

素因数の和:1832493

約数の個数: 16

約数和(自身を含む): 1026184320

約数和(自身を除く): 382986999

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 1832471, 5497413, 16492239, 23822123, 49476717, 71466369, 214399107, 643197321]

約数ペア:

[(1, 643197321), (3, 214399107), (9, 71466369), (13, 49476717), (27, 23822123), (39, 16492239), (117, 5497413), (351, 1832471)]