19968916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{8563}}^1$

素因数の和:8631

約数の個数: 24

約数和(自身を含む): 38846304

約数和(自身を除く): 18877388

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 212, 583, 1166, 2332, 8563, 17126, 34252, 94193, 188386, 376772, 453839, 907678, 1815356, 4992229, 9984458, 19968916]

約数ペア:

[(1, 19968916), (2, 9984458), (4, 4992229), (11, 1815356), (22, 907678), (44, 453839), (53, 376772), (106, 188386), (212, 94193), (583, 34252), (1166, 17126), (2332, 8563)]