20081116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{19843}}^1$

素因数の和:19881

約数の個数: 24

約数和(自身を含む): 40005504

約数和(自身を除く): 19924388

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 19843, 39686, 79372, 218273, 436546, 456389, 873092, 912778, 1825556, 5020279, 10040558, 20081116]

約数ペア:

[(1, 20081116), (2, 10040558), (4, 5020279), (11, 1825556), (22, 912778), (23, 873092), (44, 456389), (46, 436546), (92, 218273), (253, 79372), (506, 39686), (1012, 19843)]