21404734

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{613}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 37134720

約数和(自身を除く): 15729986

約数列:

[1, 2, 13, 17, 26, 34, 79, 158, 221, 442, 613, 1027, 1226, 1343, 2054, 2686, 7969, 10421, 15938, 17459, 20842, 34918, 48427, 96854, 135473, 270946, 629551, 823259, 1259102, 1646518, 10702367, 21404734]

約数ペア:

[(1, 21404734), (2, 10702367), (13, 1646518), (17, 1259102), (26, 823259), (34, 629551), (79, 270946), (158, 135473), (221, 96854), (442, 48427), (613, 34918), (1027, 20842), (1226, 17459), (1343, 15938), (2054, 10421), (2686, 7969)]