21569691

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{367}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 34126848

約数和(自身を除く): 12557157

約数列:

[1, 3, 11, 13, 33, 39, 137, 143, 367, 411, 429, 1101, 1507, 1781, 4037, 4521, 4771, 5343, 12111, 14313, 19591, 50279, 52481, 58773, 150837, 157443, 553069, 653627, 1659207, 1960881, 7189897, 21569691]

約数ペア:

[(1, 21569691), (3, 7189897), (11, 1960881), (13, 1659207), (33, 653627), (39, 553069), (137, 157443), (143, 150837), (367, 58773), (411, 52481), (429, 50279), (1101, 19591), (1507, 14313), (1781, 12111), (4037, 5343), (4521, 4771)]