21000948009

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{1225331}}^1$

素因数の和:1225560

約数の個数: 16

約数和(自身を含む): 29113888320

約数和(自身を除く): 8112940311

約数列:

[1, 3, 29, 87, 197, 591, 5713, 17139, 1225331, 3675993, 35534599, 106603797, 241390207, 724170621, 7000316003, 21000948009]

約数ペア:

[(1, 21000948009), (3, 7000316003), (29, 724170621), (87, 241390207), (197, 106603797), (591, 35534599), (5713, 3675993), (17139, 1225331)]