18280418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 30735936

約数和(自身を除く): 12455518

約数列:

[1, 2, 13, 26, 43, 83, 86, 166, 197, 394, 559, 1079, 1118, 2158, 2561, 3569, 5122, 7138, 8471, 16351, 16942, 32702, 46397, 92794, 110123, 212563, 220246, 425126, 703093, 1406186, 9140209, 18280418]

約数ペア:

[(1, 18280418), (2, 9140209), (13, 1406186), (26, 703093), (43, 425126), (83, 220246), (86, 212563), (166, 110123), (197, 92794), (394, 46397), (559, 32702), (1079, 16942), (1118, 16351), (2158, 8471), (2561, 7138), (3569, 5122)]