20320994

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{13043}}^1$

素因数の和:13105

約数の個数: 16

約数和(自身を含む): 32870880

約数和(自身を除く): 12549886

約数列:

[1, 2, 19, 38, 41, 82, 779, 1558, 13043, 26086, 247817, 495634, 534763, 1069526, 10160497, 20320994]

約数ペア:

[(1, 20320994), (2, 10160497), (19, 1069526), (38, 534763), (41, 495634), (82, 247817), (779, 26086), (1558, 13043)]