21750022

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11681}}^1$

素因数の和:11716

約数の個数: 24

約数和(自身を含む): 39952440

約数和(自身を除く): 18202418

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 11681, 23362, 81767, 163534, 221939, 443878, 572369, 1144738, 1553573, 3107146, 10875011, 21750022]

約数ペア:

[(1, 21750022), (2, 10875011), (7, 3107146), (14, 1553573), (19, 1144738), (38, 572369), (49, 443878), (98, 221939), (133, 163534), (266, 81767), (931, 23362), (1862, 11681)]