21066892

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68399}}^1$

素因数の和:68421

約数の個数: 24

約数和(自身を含む): 45964800

約数和(自身を除く): 24897908

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68399, 136798, 273596, 478793, 752389, 957586, 1504778, 1915172, 3009556, 5266723, 10533446, 21066892]

約数ペア:

[(1, 21066892), (2, 10533446), (4, 5266723), (7, 3009556), (11, 1915172), (14, 1504778), (22, 957586), (28, 752389), (44, 478793), (77, 273596), (154, 136798), (308, 68399)]