20171805669

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{71}}^1\times {\mathrm{23059}}^1$

素因数の和:23210

約数の個数: 36

約数和(自身を含む): 30368913120

約数和(自身を除く): 10197107451

約数列:

[1, 3, 9, 37, 71, 111, 213, 333, 639, 1369, 2627, 4107, 7881, 12321, 23059, 23643, 69177, 97199, 207531, 291597, 853183, 874791, 1637189, 2559549, 4911567, 7678647, 14734701, 31567771, 60575993, 94703313, 181727979, 284109939, 545183937, 2241311741, 6723935223, 20171805669]

約数ペア:

[(1, 20171805669), (3, 6723935223), (9, 2241311741), (37, 545183937), (71, 284109939), (111, 181727979), (213, 94703313), (333, 60575993), (639, 31567771), (1369, 14734701), (2627, 7678647), (4107, 4911567), (7881, 2559549), (12321, 1637189), (23059, 874791), (23643, 853183), (69177, 291597), (97199, 207531)]