1389017

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:248

約数の個数: 16

約数和(自身を含む): 1692672

約数和(自身を除く): 303655

約数列:

[1, 7, 31, 37, 173, 217, 259, 1147, 1211, 5363, 6401, 8029, 37541, 44807, 198431, 1389017]

約数ペア:

[(1, 1389017), (7, 198431), (31, 44807), (37, 37541), (173, 8029), (217, 6401), (259, 5363), (1147, 1211)]