28156804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17467}}^1$

素因数の和:17515

約数の個数: 24

約数和(自身を含む): 54779648

約数和(自身を除く): 26622844

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 17467, 34934, 69868, 227071, 454142, 541477, 908284, 1082954, 2165908, 7039201, 14078402, 28156804]

約数ペア:

[(1, 28156804), (2, 14078402), (4, 7039201), (13, 2165908), (26, 1082954), (31, 908284), (52, 541477), (62, 454142), (124, 227071), (403, 69868), (806, 34934), (1612, 17467)]