21884440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{32183}}^1$

素因数の和:32211

約数の個数: 32

約数和(自身を含む): 52138080

約数和(自身を除く): 30253640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 32183, 64366, 128732, 160915, 257464, 321830, 547111, 643660, 1094222, 1287320, 2188444, 2735555, 4376888, 5471110, 10942220, 21884440]

約数ペア:

[(1, 21884440), (2, 10942220), (4, 5471110), (5, 4376888), (8, 2735555), (10, 2188444), (17, 1287320), (20, 1094222), (34, 643660), (40, 547111), (68, 321830), (85, 257464), (136, 160915), (170, 128732), (340, 64366), (680, 32183)]