21704830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2081}}^1$

素因数の和:2244

約数の個数: 32

約数和(自身を含む): 44971200

約数和(自身を除く): 23266370

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 2081, 2086, 4162, 5215, 10405, 10430, 14567, 20810, 29134, 72835, 145670, 310069, 620138, 1550345, 2170483, 3100690, 4340966, 10852415, 21704830]

約数ペア:

[(1, 21704830), (2, 10852415), (5, 4340966), (7, 3100690), (10, 2170483), (14, 1550345), (35, 620138), (70, 310069), (149, 145670), (298, 72835), (745, 29134), (1043, 20810), (1490, 14567), (2081, 10430), (2086, 10405), (4162, 5215)]