20936209

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:540

約数の個数: 16

約数和(自身を含む): 24560640

約数和(自身を除く): 3624431

約数列:

[1, 7, 59, 163, 311, 413, 1141, 2177, 9617, 18349, 50693, 67319, 128443, 354851, 2990887, 20936209]

約数ペア:

[(1, 20936209), (7, 2990887), (59, 354851), (163, 128443), (311, 67319), (413, 50693), (1141, 18349), (2177, 9617)]