18904266

素因数分解:

$2^1\times 3^4\times {\mathrm{61}}^1\times {\mathrm{1913}}^1$

素因数の和:1988

約数の個数: 40

約数和(自身を含む): 43076484

約数和(自身を除く): 24172218

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 61, 81, 122, 162, 183, 366, 549, 1098, 1647, 1913, 3294, 3826, 4941, 5739, 9882, 11478, 17217, 34434, 51651, 103302, 116693, 154953, 233386, 309906, 350079, 700158, 1050237, 2100474, 3150711, 6301422, 9452133, 18904266]

約数ペア:

[(1, 18904266), (2, 9452133), (3, 6301422), (6, 3150711), (9, 2100474), (18, 1050237), (27, 700158), (54, 350079), (61, 309906), (81, 233386), (122, 154953), (162, 116693), (183, 103302), (366, 51651), (549, 34434), (1098, 17217), (1647, 11478), (1913, 9882), (3294, 5739), (3826, 4941)]