20199718

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4523}}^1$

素因数の和:4572

約数の個数: 32

約数和(自身を含む): 39087360

約数和(自身を除く): 18887642

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 77, 154, 203, 319, 406, 638, 2233, 4466, 4523, 9046, 31661, 49753, 63322, 99506, 131167, 262334, 348271, 696542, 918169, 1442837, 1836338, 2885674, 10099859, 20199718]

約数ペア:

[(1, 20199718), (2, 10099859), (7, 2885674), (11, 1836338), (14, 1442837), (22, 918169), (29, 696542), (58, 348271), (77, 262334), (154, 131167), (203, 99506), (319, 63322), (406, 49753), (638, 31661), (2233, 9046), (4466, 4523)]