21937480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{32261}}^1$

素因数の和:32289

約数の個数: 32

約数和(自身を含む): 52264440

約数和(自身を除く): 30326960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 32261, 64522, 129044, 161305, 258088, 322610, 548437, 645220, 1096874, 1290440, 2193748, 2742185, 4387496, 5484370, 10968740, 21937480]

約数ペア:

[(1, 21937480), (2, 10968740), (4, 5484370), (5, 4387496), (8, 2742185), (10, 2193748), (17, 1290440), (20, 1096874), (34, 645220), (40, 548437), (68, 322610), (85, 258088), (136, 161305), (170, 129044), (340, 64522), (680, 32261)]