21055214

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{2777}}^1$

素因数の和:3019

約数の個数: 16

約数和(自身を含む): 33602688

約数和(自身を除く): 12547474

約数列:

[1, 2, 17, 34, 223, 446, 2777, 3791, 5554, 7582, 47209, 94418, 619271, 1238542, 10527607, 21055214]

約数ペア:

[(1, 21055214), (2, 10527607), (17, 1238542), (34, 619271), (223, 94418), (446, 47209), (2777, 7582), (3791, 5554)]