20145505737

素因数分解:

$3^1\times 7^1\times {\mathrm{1487}}^1\times {\mathrm{645131}}^1$

素因数の和:646628

約数の個数: 16

約数和(自身を含む): 30718605312

約数和(自身を除く): 10573099575

約数列:

[1, 3, 7, 21, 1487, 4461, 10409, 31227, 645131, 1935393, 4515917, 13547751, 959309797, 2877929391, 6715168579, 20145505737]

約数ペア:

[(1, 20145505737), (3, 6715168579), (7, 2877929391), (21, 959309797), (1487, 13547751), (4461, 4515917), (10409, 1935393), (31227, 645131)]