20690474

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{677}}^1$

素因数の和:782

約数の個数: 32

約数和(自身を含む): 37100160

約数和(自身を除く): 16409686

約数列:

[1, 2, 7, 14, 37, 59, 74, 118, 259, 413, 518, 677, 826, 1354, 2183, 4366, 4739, 9478, 15281, 25049, 30562, 39943, 50098, 79886, 175343, 279601, 350686, 559202, 1477891, 2955782, 10345237, 20690474]

約数ペア:

[(1, 20690474), (2, 10345237), (7, 2955782), (14, 1477891), (37, 559202), (59, 350686), (74, 279601), (118, 175343), (259, 79886), (413, 50098), (518, 39943), (677, 30562), (826, 25049), (1354, 15281), (2183, 9478), (4366, 4739)]