21085715

素因数分解:

$5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{10211}}^1$

素因数の和:10282

約数の個数: 16

約数和(自身を含む): 29410560

約数和(自身を除く): 8324845

約数列:

[1, 5, 7, 35, 59, 295, 413, 2065, 10211, 51055, 71477, 357385, 602449, 3012245, 4217143, 21085715]

約数ペア:

[(1, 21085715), (5, 4217143), (7, 3012245), (35, 602449), (59, 357385), (295, 71477), (413, 51055), (2065, 10211)]