18499371

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 28089600

約数和(自身を除く): 9590229

約数列:

[1, 3, 11, 33, 37, 109, 111, 139, 327, 407, 417, 1199, 1221, 1529, 3597, 4033, 4587, 5143, 12099, 15151, 15429, 44363, 45453, 56573, 133089, 166661, 169719, 499983, 560587, 1681761, 6166457, 18499371]

約数ペア:

[(1, 18499371), (3, 6166457), (11, 1681761), (33, 560587), (37, 499983), (109, 169719), (111, 166661), (139, 133089), (327, 56573), (407, 45453), (417, 44363), (1199, 15429), (1221, 15151), (1529, 12099), (3597, 5143), (4033, 4587)]