21050138

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{229}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 34776000

約数和(自身を除く): 13725862

約数列:

[1, 2, 19, 38, 41, 59, 82, 118, 229, 458, 779, 1121, 1558, 2242, 2419, 4351, 4838, 8702, 9389, 13511, 18778, 27022, 45961, 91922, 178391, 256709, 356782, 513418, 553951, 1107902, 10525069, 21050138]

約数ペア:

[(1, 21050138), (2, 10525069), (19, 1107902), (38, 553951), (41, 513418), (59, 356782), (82, 256709), (118, 178391), (229, 91922), (458, 45961), (779, 27022), (1121, 18778), (1558, 13511), (2242, 9389), (2419, 8702), (4351, 4838)]