20915409

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{12653}}^1$

素因数の和:12704

約数の個数: 16

約数和(自身を含む): 30369600

約数和(自身を除く): 9454191

約数列:

[1, 3, 19, 29, 57, 87, 551, 1653, 12653, 37959, 240407, 366937, 721221, 1100811, 6971803, 20915409]

約数ペア:

[(1, 20915409), (3, 6971803), (19, 1100811), (29, 721221), (57, 366937), (87, 240407), (551, 37959), (1653, 12653)]