18120172

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{103}}^2$

素因数の和:278

約数の個数: 36

約数和(自身を含む): 37195536

約数和(自身を除く): 19075364

約数列:

[1, 2, 4, 7, 14, 28, 61, 103, 122, 206, 244, 412, 427, 721, 854, 1442, 1708, 2884, 6283, 10609, 12566, 21218, 25132, 42436, 43981, 74263, 87962, 148526, 175924, 297052, 647149, 1294298, 2588596, 4530043, 9060086, 18120172]

約数ペア:

[(1, 18120172), (2, 9060086), (4, 4530043), (7, 2588596), (14, 1294298), (28, 647149), (61, 297052), (103, 175924), (122, 148526), (206, 87962), (244, 74263), (412, 43981), (427, 42436), (721, 25132), (854, 21218), (1442, 12566), (1708, 10609), (2884, 6283)]