20023549

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{313}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 26727680

約数和(自身を除く): 6704131

約数列:

[1, 7, 13, 19, 37, 91, 133, 247, 259, 313, 481, 703, 1729, 2191, 3367, 4069, 4921, 5947, 9139, 11581, 28483, 41629, 63973, 77311, 81067, 150553, 220039, 541177, 1053871, 1540273, 2860507, 20023549]

約数ペア:

[(1, 20023549), (7, 2860507), (13, 1540273), (19, 1053871), (37, 541177), (91, 220039), (133, 150553), (247, 81067), (259, 77311), (313, 63973), (481, 41629), (703, 28483), (1729, 11581), (2191, 9139), (3367, 5947), (4069, 4921)]