21266770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2039}}^1$

素因数の和:2202

約数の個数: 32

約数和(自身を含む): 44064000

約数和(自身を除く): 22797230

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 2039, 2086, 4078, 5215, 10195, 10430, 14273, 20390, 28546, 71365, 142730, 303811, 607622, 1519055, 2126677, 3038110, 4253354, 10633385, 21266770]

約数ペア:

[(1, 21266770), (2, 10633385), (5, 4253354), (7, 3038110), (10, 2126677), (14, 1519055), (35, 607622), (70, 303811), (149, 142730), (298, 71365), (745, 28546), (1043, 20390), (1490, 14273), (2039, 10430), (2086, 10195), (4078, 5215)]