20443297

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 26449920

約数和(自身を除く): 6006623

約数列:

[1, 7, 19, 23, 41, 133, 161, 163, 287, 437, 779, 943, 1141, 3059, 3097, 3749, 5453, 6601, 6683, 17917, 21679, 26243, 46781, 71231, 125419, 126977, 153709, 498617, 888839, 1075963, 2920471, 20443297]

約数ペア:

[(1, 20443297), (7, 2920471), (19, 1075963), (23, 888839), (41, 498617), (133, 153709), (161, 126977), (163, 125419), (287, 71231), (437, 46781), (779, 26243), (943, 21679), (1141, 17917), (3059, 6683), (3097, 6601), (3749, 5453)]