21221783

素因数分解:

${\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:562

約数の個数: 16

約数和(自身を含む): 23911200

約数和(自身を除く): 2689417

約数列:

[1, 11, 53, 89, 409, 583, 979, 4499, 4717, 21677, 36401, 51887, 238447, 400411, 1929253, 21221783]

約数ペア:

[(1, 21221783), (11, 1929253), (53, 400411), (89, 238447), (409, 51887), (583, 36401), (979, 21677), (4499, 4717)]