20488898

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:266

約数の個数: 32

約数和(自身を含む): 33225984

約数和(自身を除く): 12737086

約数列:

[1, 2, 37, 43, 47, 74, 86, 94, 137, 274, 1591, 1739, 2021, 3182, 3478, 4042, 5069, 5891, 6439, 10138, 11782, 12878, 74777, 149554, 217967, 238243, 276877, 435934, 476486, 553754, 10244449, 20488898]

約数ペア:

[(1, 20488898), (2, 10244449), (37, 553754), (43, 476486), (47, 435934), (74, 276877), (86, 238243), (94, 217967), (137, 149554), (274, 74777), (1591, 12878), (1739, 11782), (2021, 10138), (3182, 6439), (3478, 5891), (4042, 5069)]