21105542

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{2791}}^1$

素因数の和:3011

約数の個数: 16

約数和(自身を含む): 33504000

約数和(自身を除く): 12398458

約数列:

[1, 2, 19, 38, 199, 398, 2791, 3781, 5582, 7562, 53029, 106058, 555409, 1110818, 10552771, 21105542]

約数ペア:

[(1, 21105542), (2, 10552771), (19, 1110818), (38, 555409), (199, 106058), (398, 53029), (2791, 7562), (3781, 5582)]