20829705

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2887}}^1$

素因数の和:2945

約数の個数: 32

約数和(自身を含む): 36873984

約数和(自身を除く): 16044279

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 2887, 7215, 8661, 14435, 37531, 43305, 106819, 112593, 187655, 320457, 534095, 562965, 1388647, 1602285, 4165941, 6943235, 20829705]

約数ペア:

[(1, 20829705), (3, 6943235), (5, 4165941), (13, 1602285), (15, 1388647), (37, 562965), (39, 534095), (65, 320457), (111, 187655), (185, 112593), (195, 106819), (481, 43305), (555, 37531), (1443, 14435), (2405, 8661), (2887, 7215)]