20764163

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1019}}^1$

素因数の和:1138

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 3911677

約数列:

[1, 7, 41, 71, 287, 497, 1019, 2911, 7133, 20377, 41779, 72349, 292453, 506443, 2966309, 20764163]

約数ペア:

[(1, 20764163), (7, 2966309), (41, 506443), (71, 292453), (287, 72349), (497, 41779), (1019, 20377), (2911, 7133)]