18354778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:310

約数の個数: 32

約数和(自身を含む): 30748032

約数和(自身を除く): 12393254

約数列:

[1, 2, 13, 26, 61, 71, 122, 142, 163, 326, 793, 923, 1586, 1846, 2119, 4238, 4331, 8662, 9943, 11573, 19886, 23146, 56303, 112606, 129259, 150449, 258518, 300898, 705953, 1411906, 9177389, 18354778]

約数ペア:

[(1, 18354778), (2, 9177389), (13, 1411906), (26, 705953), (61, 300898), (71, 258518), (122, 150449), (142, 129259), (163, 112606), (326, 56303), (793, 23146), (923, 19886), (1586, 11573), (1846, 9943), (2119, 8662), (4238, 4331)]