408020893

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{28813}}^1$

素因数の和:28861

約数の個数: 18

約数和(自身を含む): 504216186

約数和(自身を除く): 96195293

約数列:

[1, 7, 17, 49, 119, 289, 833, 2023, 14161, 28813, 201691, 489821, 1411837, 3428747, 8326957, 24001229, 58288699, 408020893]

約数ペア:

[(1, 408020893), (7, 58288699), (17, 24001229), (49, 8326957), (119, 3428747), (289, 1411837), (833, 489821), (2023, 201691), (14161, 28813)]