11720655

素因数分解:

$3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1439}}^1$

素因数の和:1631

約数の個数: 24

約数和(自身を含む): 20442240

約数和(自身を除く): 8721585

約数列:

[1, 3, 5, 9, 15, 45, 181, 543, 905, 1439, 1629, 2715, 4317, 7195, 8145, 12951, 21585, 64755, 260459, 781377, 1302295, 2344131, 3906885, 11720655]

約数ペア:

[(1, 11720655), (3, 3906885), (5, 2344131), (9, 1302295), (15, 781377), (45, 260459), (181, 64755), (543, 21585), (905, 12951), (1439, 8145), (1629, 7195), (2715, 4317)]