18563798

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:620

約数の個数: 32

約数和(自身を含む): 32400000

約数和(自身を除く): 13836202

約数列:

[1, 2, 11, 19, 22, 38, 89, 178, 209, 418, 499, 979, 998, 1691, 1958, 3382, 5489, 9481, 10978, 18601, 18962, 37202, 44411, 88822, 104291, 208582, 488521, 843809, 977042, 1687618, 9281899, 18563798]

約数ペア:

[(1, 18563798), (2, 9281899), (11, 1687618), (19, 977042), (22, 843809), (38, 488521), (89, 208582), (178, 104291), (209, 88822), (418, 44411), (499, 37202), (979, 18962), (998, 18601), (1691, 10978), (1958, 9481), (3382, 5489)]