21508877

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{461}}^1$

素因数の和:608

約数の個数: 16

約数和(自身を含む): 24086832

約数和(自身を除く): 2577955

約数列:

[1, 13, 37, 97, 461, 481, 1261, 3589, 5993, 17057, 44717, 46657, 221741, 581321, 1654529, 21508877]

約数ペア:

[(1, 21508877), (13, 1654529), (37, 581321), (97, 221741), (461, 46657), (481, 44717), (1261, 17057), (3589, 5993)]