21586866

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2609}}^1$

素因数の和:2818

約数の個数: 32

約数和(自身を含む): 49610880

約数和(自身を除く): 28024014

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 197, 394, 591, 1182, 1379, 2609, 2758, 4137, 5218, 7827, 8274, 15654, 18263, 36526, 54789, 109578, 513973, 1027946, 1541919, 3083838, 3597811, 7195622, 10793433, 21586866]

約数ペア:

[(1, 21586866), (2, 10793433), (3, 7195622), (6, 3597811), (7, 3083838), (14, 1541919), (21, 1027946), (42, 513973), (197, 109578), (394, 54789), (591, 36526), (1182, 18263), (1379, 15654), (2609, 8274), (2758, 7827), (4137, 5218)]