18318788

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{389}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 32836440

約数和(自身を除く): 14517652

約数列:

[1, 2, 4, 61, 122, 193, 244, 386, 389, 772, 778, 1556, 11773, 23546, 23729, 47092, 47458, 75077, 94916, 150154, 300308, 4579697, 9159394, 18318788]

約数ペア:

[(1, 18318788), (2, 9159394), (4, 4579697), (61, 300308), (122, 150154), (193, 94916), (244, 75077), (386, 47458), (389, 47092), (772, 23729), (778, 23546), (1556, 11773)]