20408381

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{1151}}^1$

素因数の和:1324

約数の個数: 16

約数和(自身を含む): 24883200

約数和(自身を除く): 4474819

約数列:

[1, 7, 17, 119, 149, 1043, 1151, 2533, 8057, 17731, 19567, 136969, 171499, 1200493, 2915483, 20408381]

約数ペア:

[(1, 20408381), (7, 2915483), (17, 1200493), (119, 171499), (149, 136969), (1043, 19567), (1151, 17731), (2533, 8057)]