20535405

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7321}}^1$

素因数の和:7357

約数の個数: 32

約数和(自身を含む): 37957248

約数和(自身を除く): 17421843

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 7321, 21963, 36605, 80531, 109815, 124457, 241593, 373371, 402655, 622285, 1207965, 1369027, 1866855, 4107081, 6845135, 20535405]

約数ペア:

[(1, 20535405), (3, 6845135), (5, 4107081), (11, 1866855), (15, 1369027), (17, 1207965), (33, 622285), (51, 402655), (55, 373371), (85, 241593), (165, 124457), (187, 109815), (255, 80531), (561, 36605), (935, 21963), (2805, 7321)]