21371430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16567}}^1$

素因数の和:16620

約数の個数: 32

約数和(自身を含む): 52487424

約数和(自身を除く): 31115994

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16567, 33134, 49701, 82835, 99402, 165670, 248505, 497010, 712381, 1424762, 2137143, 3561905, 4274286, 7123810, 10685715, 21371430]

約数ペア:

[(1, 21371430), (2, 10685715), (3, 7123810), (5, 4274286), (6, 3561905), (10, 2137143), (15, 1424762), (30, 712381), (43, 497010), (86, 248505), (129, 165670), (215, 99402), (258, 82835), (430, 49701), (645, 33134), (1290, 16567)]