21388138

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1\times {\mathrm{739}}^1$

素因数の和:1269

約数の個数: 16

約数和(自身を含む): 33300000

約数和(自身を除く): 11911862

約数列:

[1, 2, 29, 58, 499, 739, 998, 1478, 14471, 21431, 28942, 42862, 368761, 737522, 10694069, 21388138]

約数ペア:

[(1, 21388138), (2, 10694069), (29, 737522), (58, 368761), (499, 42862), (739, 28942), (998, 21431), (1478, 14471)]