20406741

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2819}}^1$

素因数の和:2968

約数の個数: 16

約数和(自身を含む): 28876800

約数和(自身を除く): 8470059

約数列:

[1, 3, 19, 57, 127, 381, 2413, 2819, 7239, 8457, 53561, 160683, 358013, 1074039, 6802247, 20406741]

約数ペア:

[(1, 20406741), (3, 6802247), (19, 1074039), (57, 358013), (127, 160683), (381, 53561), (2413, 8457), (2819, 7239)]