18700997

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:465

約数の個数: 24

約数和(自身を含む): 23392800

約数和(自身を除く): 4691803

約数列:

[1, 7, 19, 49, 53, 133, 371, 379, 931, 1007, 2597, 2653, 7049, 7201, 18571, 20087, 49343, 50407, 140609, 352849, 381653, 984263, 2671571, 18700997]

約数ペア:

[(1, 18700997), (7, 2671571), (19, 984263), (49, 381653), (53, 352849), (133, 140609), (371, 50407), (379, 49343), (931, 20087), (1007, 18571), (2597, 7201), (2653, 7049)]