208021979

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 248209920

約数和(自身を除く): 40187941

約数列:

[1, 11, 17, 53, 139, 151, 187, 583, 901, 1529, 1661, 2363, 2567, 7367, 8003, 9911, 20989, 25993, 28237, 81037, 88033, 125239, 136051, 230879, 356813, 1112417, 1377629, 1496561, 3924943, 12236587, 18911089, 208021979]

約数ペア:

[(1, 208021979), (11, 18911089), (17, 12236587), (53, 3924943), (139, 1496561), (151, 1377629), (187, 1112417), (583, 356813), (901, 230879), (1529, 136051), (1661, 125239), (2363, 88033), (2567, 81037), (7367, 28237), (8003, 25993), (9911, 20989)]