19995007

素因数分解:

${\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:306

約数の個数: 16

約数和(自身を含む): 21427200

約数和(自身を除く): 1432193

約数列:

[1, 29, 61, 89, 127, 1769, 2581, 3683, 5429, 7747, 11303, 157441, 224663, 327787, 689483, 19995007]

約数ペア:

[(1, 19995007), (29, 689483), (61, 327787), (89, 224663), (127, 157441), (1769, 11303), (2581, 7747), (3683, 5429)]