20435756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{4261}}^1$

素因数の和:4385

約数の個数: 24

約数和(自身を含む): 39380880

約数和(自身を除く): 18945124

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 4261, 4796, 8522, 17044, 46871, 93742, 187484, 464449, 928898, 1857796, 5108939, 10217878, 20435756]

約数ペア:

[(1, 20435756), (2, 10217878), (4, 5108939), (11, 1857796), (22, 928898), (44, 464449), (109, 187484), (218, 93742), (436, 46871), (1199, 17044), (2398, 8522), (4261, 4796)]