211930191

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1231}}^1$

素因数の和:1332

約数の個数: 48

約数和(自身を含む): 350558208

約数和(自身を除く): 138628017

約数列:

[1, 3, 9, 11, 33, 37, 47, 99, 111, 141, 333, 407, 423, 517, 1221, 1231, 1551, 1739, 3663, 3693, 4653, 5217, 11079, 13541, 15651, 19129, 40623, 45547, 57387, 57857, 121869, 136641, 172161, 173571, 409923, 501017, 520713, 636427, 1503051, 1909281, 2140709, 4509153, 5727843, 6422127, 19266381, 23547799, 70643397, 211930191]

約数ペア:

[(1, 211930191), (3, 70643397), (9, 23547799), (11, 19266381), (33, 6422127), (37, 5727843), (47, 4509153), (99, 2140709), (111, 1909281), (141, 1503051), (333, 636427), (407, 520713), (423, 501017), (517, 409923), (1221, 173571), (1231, 172161), (1551, 136641), (1739, 121869), (3663, 57857), (3693, 57387), (4653, 45547), (5217, 40623), (11079, 19129), (13541, 15651)]