21403732

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{14423}}^1$

素因数の和:14487

約数の個数: 24

約数和(自身を含む): 43618176

約数和(自身を除く): 22214444

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 14423, 28846, 57692, 100961, 201922, 403844, 764419, 1528838, 3057676, 5350933, 10701866, 21403732]

約数ペア:

[(1, 21403732), (2, 10701866), (4, 5350933), (7, 3057676), (14, 1528838), (28, 764419), (53, 403844), (106, 201922), (212, 100961), (371, 57692), (742, 28846), (1484, 14423)]