21331736

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1439}}^1$

素因数の和:1571

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 21436264

約数列:

[1, 2, 4, 8, 17, 34, 68, 109, 136, 218, 436, 872, 1439, 1853, 2878, 3706, 5756, 7412, 11512, 14824, 24463, 48926, 97852, 156851, 195704, 313702, 627404, 1254808, 2666467, 5332934, 10665868, 21331736]

約数ペア:

[(1, 21331736), (2, 10665868), (4, 5332934), (8, 2666467), (17, 1254808), (34, 627404), (68, 313702), (109, 195704), (136, 156851), (218, 97852), (436, 48926), (872, 24463), (1439, 14824), (1853, 11512), (2878, 7412), (3706, 5756)]