20939957

素因数分解:

${\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:376

約数の個数: 16

約数和(自身を含む): 22809600

約数和(自身を除く): 1869643

約数列:

[1, 19, 47, 131, 179, 893, 2489, 3401, 6157, 8413, 23449, 116983, 159847, 445531, 1102103, 20939957]

約数ペア:

[(1, 20939957), (19, 1102103), (47, 445531), (131, 159847), (179, 116983), (893, 23449), (2489, 8413), (3401, 6157)]