18960515

素因数分解:

$5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1999}}^1$

素因数の和:2282

約数の個数: 16

約数和(自身を含む): 26112000

約数和(自身を除く): 7151485

約数列:

[1, 5, 7, 35, 271, 1355, 1897, 1999, 9485, 9995, 13993, 69965, 541729, 2708645, 3792103, 18960515]

約数ペア:

[(1, 18960515), (5, 3792103), (7, 2708645), (35, 541729), (271, 69965), (1355, 13993), (1897, 9995), (1999, 9485)]