21602679

素因数分解:

$3^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{659}}^1$

素因数の和:899

約数の個数: 24

約数和(自身を含む): 33707520

約数和(自身を除く): 12104841

約数列:

[1, 3, 7, 21, 49, 147, 223, 659, 669, 1561, 1977, 4613, 4683, 10927, 13839, 32291, 32781, 96873, 146957, 440871, 1028699, 3086097, 7200893, 21602679]

約数ペア:

[(1, 21602679), (3, 7200893), (7, 3086097), (21, 1028699), (49, 440871), (147, 146957), (223, 96873), (659, 32781), (669, 32291), (1561, 13839), (1977, 10927), (4613, 4683)]