21625677

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 33696000

約数和(自身を除く): 12070323

約数列:

[1, 3, 9, 27, 29, 71, 87, 213, 261, 389, 639, 783, 1167, 1917, 2059, 3501, 6177, 10503, 11281, 18531, 27619, 33843, 55593, 82857, 101529, 248571, 304587, 745713, 800951, 2402853, 7208559, 21625677]

約数ペア:

[(1, 21625677), (3, 7208559), (9, 2402853), (27, 800951), (29, 745713), (71, 304587), (87, 248571), (213, 101529), (261, 82857), (389, 55593), (639, 33843), (783, 27619), (1167, 18531), (1917, 11281), (2059, 10503), (3501, 6177)]