21175310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8573}}^1$

素因数の和:8612

約数の個数: 32

約数和(自身を含む): 43212960

約数和(自身を除く): 22037650

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8573, 17146, 42865, 85730, 111449, 162887, 222898, 325774, 557245, 814435, 1114490, 1628870, 2117531, 4235062, 10587655, 21175310]

約数ペア:

[(1, 21175310), (2, 10587655), (5, 4235062), (10, 2117531), (13, 1628870), (19, 1114490), (26, 814435), (38, 557245), (65, 325774), (95, 222898), (130, 162887), (190, 111449), (247, 85730), (494, 42865), (1235, 17146), (2470, 8573)]