128156217

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{51283}}^1$

素因数の和:51317

約数の個数: 24

約数和(自身を含む): 210469536

約数和(自身を除く): 82313319

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 51283, 153849, 358981, 871811, 1076943, 2512867, 2615433, 6102677, 7538601, 18308031, 42718739, 128156217]

約数ペア:

[(1, 128156217), (3, 42718739), (7, 18308031), (17, 7538601), (21, 6102677), (49, 2615433), (51, 2512867), (119, 1076943), (147, 871811), (357, 358981), (833, 153849), (2499, 51283)]