19906145

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{12101}}^1$

素因数の和:12160

約数の個数: 16

約数和(自身を含む): 27883008

約数和(自身を除く): 7976863

約数列:

[1, 5, 7, 35, 47, 235, 329, 1645, 12101, 60505, 84707, 423535, 568747, 2843735, 3981229, 19906145]

約数ペア:

[(1, 19906145), (5, 3981229), (7, 2843735), (35, 568747), (47, 423535), (235, 84707), (329, 60505), (1645, 12101)]