21431638

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{1657}}^1$

素因数の和:1911

約数の個数: 16

約数和(自身を含む): 33425280

約数和(自身を除く): 11993642

約数列:

[1, 2, 29, 58, 223, 446, 1657, 3314, 6467, 12934, 48053, 96106, 369511, 739022, 10715819, 21431638]

約数ペア:

[(1, 21431638), (2, 10715819), (29, 739022), (58, 369511), (223, 96106), (446, 48053), (1657, 12934), (3314, 6467)]