19893907

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:498

約数の個数: 16

約数和(自身を含む): 22442112

約数和(自身を除く): 2548205

約数列:

[1, 11, 43, 137, 307, 473, 1507, 3377, 5891, 13201, 42059, 64801, 145211, 462649, 1808537, 19893907]

約数ペア:

[(1, 19893907), (11, 1808537), (43, 462649), (137, 145211), (307, 64801), (473, 42059), (1507, 13201), (3377, 5891)]