19993667

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:410

約数の個数: 16

約数和(自身を含む): 21593088

約数和(自身を除く): 1599421

約数列:

[1, 31, 43, 53, 283, 1333, 1643, 2279, 8773, 12169, 14999, 70649, 377239, 464969, 644957, 19993667]

約数ペア:

[(1, 19993667), (31, 644957), (43, 464969), (53, 377239), (283, 70649), (1333, 14999), (1643, 12169), (2279, 8773)]