21369616

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12967}}^1$

素因数の和:13078

約数の個数: 20

約数和(自身を含む): 41808832

約数和(自身を除く): 20439216

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12967, 25934, 51868, 103736, 207472, 1335601, 2671202, 5342404, 10684808, 21369616]

約数ペア:

[(1, 21369616), (2, 10684808), (4, 5342404), (8, 2671202), (16, 1335601), (103, 207472), (206, 103736), (412, 51868), (824, 25934), (1648, 12967)]