207780307

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{271}}^1\times {\mathrm{379}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 253852160

約数和(自身を除く): 46071853

約数列:

[1, 7, 17, 119, 271, 289, 379, 1897, 2023, 2653, 4607, 6443, 32249, 45101, 78319, 102709, 109531, 548233, 718963, 766717, 1746053, 12222371, 29682901, 207780307]

約数ペア:

[(1, 207780307), (7, 29682901), (17, 12222371), (119, 1746053), (271, 766717), (289, 718963), (379, 548233), (1897, 109531), (2023, 102709), (2653, 78319), (4607, 45101), (6443, 32249)]