20393409

素因数分解:

$3^1\times {\mathrm{29}}^2\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 28847520

約数和(自身を除く): 8454111

約数列:

[1, 3, 29, 59, 87, 137, 177, 411, 841, 1711, 2523, 3973, 5133, 8083, 11919, 24249, 49619, 115217, 148857, 234407, 345651, 703221, 6797803, 20393409]

約数ペア:

[(1, 20393409), (3, 6797803), (29, 703221), (59, 345651), (87, 234407), (137, 148857), (177, 115217), (411, 49619), (841, 24249), (1711, 11919), (2523, 8083), (3973, 5133)]