20019041

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 23474688

約数和(自身を除く): 3455647

約数列:

[1, 7, 61, 173, 271, 427, 1211, 1897, 10553, 16531, 46883, 73871, 115717, 328181, 2859863, 20019041]

約数ペア:

[(1, 20019041), (7, 2859863), (61, 328181), (173, 115717), (271, 73871), (427, 46883), (1211, 16531), (1897, 10553)]