21968895

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{997}}^1$

素因数の和:1131

約数の個数: 32

約数和(自身を含む): 38227392

約数和(自身を除く): 16258497

約数列:

[1, 3, 5, 13, 15, 39, 65, 113, 195, 339, 565, 997, 1469, 1695, 2991, 4407, 4985, 7345, 12961, 14955, 22035, 38883, 64805, 112661, 194415, 337983, 563305, 1464593, 1689915, 4393779, 7322965, 21968895]

約数ペア:

[(1, 21968895), (3, 7322965), (5, 4393779), (13, 1689915), (15, 1464593), (39, 563305), (65, 337983), (113, 194415), (195, 112661), (339, 64805), (565, 38883), (997, 22035), (1469, 14955), (1695, 12961), (2991, 7345), (4407, 4985)]