18306895

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1423}}^1$

素因数の和:1542

約数の個数: 16

約数和(自身を含む): 22966272

約数和(自身を除く): 4659377

約数列:

[1, 5, 31, 83, 155, 415, 1423, 2573, 7115, 12865, 44113, 118109, 220565, 590545, 3661379, 18306895]

約数ペア:

[(1, 18306895), (5, 3661379), (31, 590545), (83, 220565), (155, 118109), (415, 44113), (1423, 12865), (2573, 7115)]