21090801

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{1627}}^1$

素因数の和:1808

約数の個数: 16

約数和(自身を含む): 29304000

約数和(自身を除く): 8213199

約数列:

[1, 3, 29, 87, 149, 447, 1627, 4321, 4881, 12963, 47183, 141549, 242423, 727269, 7030267, 21090801]

約数ペア:

[(1, 21090801), (3, 7030267), (29, 727269), (87, 242423), (149, 141549), (447, 47183), (1627, 12963), (4321, 4881)]