21961960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{32297}}^1$

素因数の和:32325

約数の個数: 32

約数和(自身を含む): 52322760

約数和(自身を除く): 30360800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 32297, 64594, 129188, 161485, 258376, 322970, 549049, 645940, 1098098, 1291880, 2196196, 2745245, 4392392, 5490490, 10980980, 21961960]

約数ペア:

[(1, 21961960), (2, 10980980), (4, 5490490), (5, 4392392), (8, 2745245), (10, 2196196), (17, 1291880), (20, 1098098), (34, 645940), (40, 549049), (68, 322970), (85, 258376), (136, 161485), (170, 129188), (340, 64594), (680, 32297)]