18111005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 25159680

約数和(自身を除く): 7048675

約数列:

[1, 5, 11, 23, 55, 103, 115, 139, 253, 515, 695, 1133, 1265, 1529, 2369, 3197, 5665, 7645, 11845, 14317, 15985, 26059, 35167, 71585, 130295, 157487, 175835, 329291, 787435, 1646455, 3622201, 18111005]

約数ペア:

[(1, 18111005), (5, 3622201), (11, 1646455), (23, 787435), (55, 329291), (103, 175835), (115, 157487), (139, 130295), (253, 71585), (515, 35167), (695, 26059), (1133, 15985), (1265, 14317), (1529, 11845), (2369, 7645), (3197, 5665)]