19698778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{21839}}^1$

素因数の和:21893

約数の個数: 16

約数和(自身を含む): 33022080

約数和(自身を除く): 13323302

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 21839, 43678, 240229, 480458, 895399, 1790798, 9849389, 19698778]

約数ペア:

[(1, 19698778), (2, 9849389), (11, 1790798), (22, 895399), (41, 480458), (82, 240229), (451, 43678), (902, 21839)]