15978274

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{1153}}^1$

素因数の和:1222

約数の個数: 24

約数和(自身を含む): 26608932

約数和(自身を除く): 10630658

約数列:

[1, 2, 13, 26, 41, 82, 169, 338, 533, 1066, 1153, 2306, 6929, 13858, 14989, 29978, 47273, 94546, 194857, 389714, 614549, 1229098, 7989137, 15978274]

約数ペア:

[(1, 15978274), (2, 7989137), (13, 1229098), (26, 614549), (41, 389714), (82, 194857), (169, 94546), (338, 47273), (533, 29978), (1066, 14989), (1153, 13858), (2306, 6929)]