21432665

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{577}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 29963520

約数和(自身を除く): 8530855

約数列:

[1, 5, 17, 19, 23, 85, 95, 115, 323, 391, 437, 577, 1615, 1955, 2185, 2885, 7429, 9809, 10963, 13271, 37145, 49045, 54815, 66355, 186371, 225607, 252149, 931855, 1128035, 1260745, 4286533, 21432665]

約数ペア:

[(1, 21432665), (5, 4286533), (17, 1260745), (19, 1128035), (23, 931855), (85, 252149), (95, 225607), (115, 186371), (323, 66355), (391, 54815), (437, 49045), (577, 37145), (1615, 13271), (1955, 10963), (2185, 9809), (2885, 7429)]