21722630

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:1004

約数の個数: 32

約数和(自身を含む): 40919040

約数和(自身を除く): 19196410

約数列:

[1, 2, 5, 10, 31, 62, 79, 155, 158, 310, 395, 790, 887, 1774, 2449, 4435, 4898, 8870, 12245, 24490, 27497, 54994, 70073, 137485, 140146, 274970, 350365, 700730, 2172263, 4344526, 10861315, 21722630]

約数ペア:

[(1, 21722630), (2, 10861315), (5, 4344526), (10, 2172263), (31, 700730), (62, 350365), (79, 274970), (155, 140146), (158, 137485), (310, 70073), (395, 54994), (790, 27497), (887, 24490), (1774, 12245), (2449, 8870), (4435, 4898)]