21012327170

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{198623}}^1$

素因数の和:198850

約数の個数: 32

約数和(自身を含む): 38612505600

約数和(自身を除く): 17600178430

約数列:

[1, 2, 5, 10, 71, 142, 149, 298, 355, 710, 745, 1490, 10579, 21158, 52895, 105790, 198623, 397246, 993115, 1986230, 14102233, 28204466, 29594827, 59189654, 70511165, 141022330, 147974135, 295948270, 2101232717, 4202465434, 10506163585, 21012327170]

約数ペア:

[(1, 21012327170), (2, 10506163585), (5, 4202465434), (10, 2101232717), (71, 295948270), (142, 147974135), (149, 141022330), (298, 70511165), (355, 59189654), (710, 29594827), (745, 28204466), (1490, 14102233), (10579, 1986230), (21158, 993115), (52895, 397246), (105790, 198623)]