20555017

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4177}}^1$

素因数の和:4240

約数の個数: 16

約数和(自身を含む): 25402240

約数和(自身を除く): 4847223

約数列:

[1, 7, 19, 37, 133, 259, 703, 4177, 4921, 29239, 79363, 154549, 555541, 1081843, 2936431, 20555017]

約数ペア:

[(1, 20555017), (7, 2936431), (19, 1081843), (37, 555541), (133, 154549), (259, 79363), (703, 29239), (4177, 4921)]