289797921

素因数分解:

$3^2\times 7^1\times {\mathrm{241}}^1\times {\mathrm{19087}}^1$

素因数の和:19341

約数の個数: 24

約数和(自身を含む): 480406784

約数和(自身を除く): 190608863

約数列:

[1, 3, 7, 9, 21, 63, 241, 723, 1687, 2169, 5061, 15183, 19087, 57261, 133609, 171783, 400827, 1202481, 4599967, 13799901, 32199769, 41399703, 96599307, 289797921]

約数ペア:

[(1, 289797921), (3, 96599307), (7, 41399703), (9, 32199769), (21, 13799901), (63, 4599967), (241, 1202481), (723, 400827), (1687, 171783), (2169, 133609), (5061, 57261), (15183, 19087)]