21067965

素因数分解:

$3^3\times 5^1\times {\mathrm{156059}}^1$

素因数の和:156073

約数の個数: 16

約数和(自身を含む): 37454400

約数和(自身を除く): 16386435

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 156059, 468177, 780295, 1404531, 2340885, 4213593, 7022655, 21067965]

約数ペア:

[(1, 21067965), (3, 7022655), (5, 4213593), (9, 2340885), (15, 1404531), (27, 780295), (45, 468177), (135, 156059)]