19982013

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{1117}}^1$

素因数の和:1276

約数の個数: 16

約数和(自身を含む): 27368640

約数和(自身を除く): 7386627

約数列:

[1, 3, 67, 89, 201, 267, 1117, 3351, 5963, 17889, 74839, 99413, 224517, 298239, 6660671, 19982013]

約数ペア:

[(1, 19982013), (3, 6660671), (67, 298239), (89, 224517), (201, 99413), (267, 74839), (1117, 17889), (3351, 5963)]