20280663

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1787}}^1$

素因数の和:1903

約数の個数: 24

約数和(自身を含む): 31890768

約数和(自身を除く): 11610105

約数列:

[1, 3, 9, 13, 39, 97, 117, 291, 873, 1261, 1787, 3783, 5361, 11349, 16083, 23231, 69693, 173339, 209079, 520017, 1560051, 2253407, 6760221, 20280663]

約数ペア:

[(1, 20280663), (3, 6760221), (9, 2253407), (13, 1560051), (39, 520017), (97, 209079), (117, 173339), (291, 69693), (873, 23231), (1261, 16083), (1787, 11349), (3783, 5361)]