19873490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21839}}^1$

素因数の和:21866

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 24155950

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 21839, 43678, 109195, 152873, 218390, 283907, 305746, 567814, 764365, 1419535, 1528730, 1987349, 2839070, 3974698, 9936745, 19873490]

約数ペア:

[(1, 19873490), (2, 9936745), (5, 3974698), (7, 2839070), (10, 1987349), (13, 1528730), (14, 1419535), (26, 764365), (35, 567814), (65, 305746), (70, 283907), (91, 218390), (130, 152873), (182, 109195), (455, 43678), (910, 21839)]