21691808

素因数分解:

$2^5\times {\mathrm{557}}^1\times {\mathrm{1217}}^1$

素因数の和:1784

約数の個数: 24

約数和(自身を含む): 42817572

約数和(自身を除く): 21125764

約数列:

[1, 2, 4, 8, 16, 32, 557, 1114, 1217, 2228, 2434, 4456, 4868, 8912, 9736, 17824, 19472, 38944, 677869, 1355738, 2711476, 5422952, 10845904, 21691808]

約数ペア:

[(1, 21691808), (2, 10845904), (4, 5422952), (8, 2711476), (16, 1355738), (32, 677869), (557, 38944), (1114, 19472), (1217, 17824), (2228, 9736), (2434, 8912), (4456, 4868)]