15987231

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{457}}^1$

素因数の和:512

約数の個数: 36

約数和(自身を含む): 26149968

約数和(自身を除く): 10162737

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 169, 207, 299, 457, 507, 897, 1371, 1521, 2691, 3887, 4113, 5941, 10511, 11661, 17823, 31533, 34983, 53469, 77233, 94599, 136643, 231699, 409929, 695097, 1229787, 1776359, 5329077, 15987231]

約数ペア:

[(1, 15987231), (3, 5329077), (9, 1776359), (13, 1229787), (23, 695097), (39, 409929), (69, 231699), (117, 136643), (169, 94599), (207, 77233), (299, 53469), (457, 34983), (507, 31533), (897, 17823), (1371, 11661), (1521, 10511), (2691, 5941), (3887, 4113)]