21000388665

素因数分解:

$3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{5857849}}^1$

素因数の和:5858096

約数の個数: 16

約数和(自身を含む): 33741216000

約数和(自身を除く): 12740827335

約数列:

[1, 3, 5, 15, 239, 717, 1195, 3585, 5857849, 17573547, 29289245, 87867735, 1400025911, 4200077733, 7000129555, 21000388665]

約数ペア:

[(1, 21000388665), (3, 7000129555), (5, 4200077733), (15, 1400025911), (239, 87867735), (717, 29289245), (1195, 17573547), (3585, 5857849)]