21021814

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 35575200

約数和(自身を除く): 14553386

約数列:

[1, 2, 11, 22, 53, 106, 121, 149, 242, 298, 583, 1166, 1331, 1639, 2662, 3278, 6413, 7897, 12826, 15794, 18029, 36058, 70543, 86867, 141086, 173734, 198319, 396638, 955537, 1911074, 10510907, 21021814]

約数ペア:

[(1, 21021814), (2, 10510907), (11, 1911074), (22, 955537), (53, 396638), (106, 198319), (121, 173734), (149, 141086), (242, 86867), (298, 70543), (583, 36058), (1166, 18029), (1331, 15794), (1639, 12826), (2662, 7897), (3278, 6413)]