20106405

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 38413440

約数和(自身を除く): 18307035

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 151, 165, 269, 453, 495, 755, 807, 1345, 1359, 1661, 2265, 2421, 2959, 4035, 4983, 6795, 8305, 8877, 12105, 14795, 14949, 24915, 26631, 40619, 44385, 74745, 121857, 133155, 203095, 365571, 446809, 609285, 1340427, 1827855, 2234045, 4021281, 6702135, 20106405]

約数ペア:

[(1, 20106405), (3, 6702135), (5, 4021281), (9, 2234045), (11, 1827855), (15, 1340427), (33, 609285), (45, 446809), (55, 365571), (99, 203095), (151, 133155), (165, 121857), (269, 74745), (453, 44385), (495, 40619), (755, 26631), (807, 24915), (1345, 14949), (1359, 14795), (1661, 12105), (2265, 8877), (2421, 8305), (2959, 6795), (4035, 4983)]