21668361

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{953}}^1$

素因数の和:1033

約数の個数: 32

約数和(自身を含む): 34618752

約数和(自身を除く): 12950391

約数列:

[1, 3, 11, 13, 33, 39, 53, 143, 159, 429, 583, 689, 953, 1749, 2067, 2859, 7579, 10483, 12389, 22737, 31449, 37167, 50509, 136279, 151527, 408837, 555599, 656617, 1666797, 1969851, 7222787, 21668361]

約数ペア:

[(1, 21668361), (3, 7222787), (11, 1969851), (13, 1666797), (33, 656617), (39, 555599), (53, 408837), (143, 151527), (159, 136279), (429, 50509), (583, 37167), (689, 31449), (953, 22737), (1749, 12389), (2067, 10483), (2859, 7579)]