18639742

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1$

素因数の和:376

約数の個数: 32

約数和(自身を含む): 31868928

約数和(自身を除く): 13229186

約数列:

[1, 2, 11, 22, 31, 62, 151, 181, 302, 341, 362, 682, 1661, 1991, 3322, 3982, 4681, 5611, 9362, 11222, 27331, 51491, 54662, 61721, 102982, 123442, 300641, 601282, 847261, 1694522, 9319871, 18639742]

約数ペア:

[(1, 18639742), (2, 9319871), (11, 1694522), (22, 847261), (31, 601282), (62, 300641), (151, 123442), (181, 102982), (302, 61721), (341, 54662), (362, 51491), (682, 27331), (1661, 11222), (1991, 9362), (3322, 5611), (3982, 4681)]