21767410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2087}}^1$

素因数の和:2250

約数の個数: 32

約数和(自身を含む): 45100800

約数和(自身を除く): 23333390

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 2086, 2087, 4174, 5215, 10430, 10435, 14609, 20870, 29218, 73045, 146090, 310963, 621926, 1554815, 2176741, 3109630, 4353482, 10883705, 21767410]

約数ペア:

[(1, 21767410), (2, 10883705), (5, 4353482), (7, 3109630), (10, 2176741), (14, 1554815), (35, 621926), (70, 310963), (149, 146090), (298, 73045), (745, 29218), (1043, 20870), (1490, 14609), (2086, 10435), (2087, 10430), (4174, 5215)]