21241610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12569}}^1$

素因数の和:12602

約数の個数: 24

約数和(自身を含む): 41405580

約数和(自身を除く): 20163970

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 12569, 25138, 62845, 125690, 163397, 326794, 816985, 1633970, 2124161, 4248322, 10620805, 21241610]

約数ペア:

[(1, 21241610), (2, 10620805), (5, 4248322), (10, 2124161), (13, 1633970), (26, 816985), (65, 326794), (130, 163397), (169, 125690), (338, 62845), (845, 25138), (1690, 12569)]