21015512

素因数分解:

$2^3\times 7^2\times {\mathrm{53611}}^1$

素因数の和:53631

約数の個数: 24

約数和(自身を含む): 45838260

約数和(自身を除く): 24822748

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 53611, 107222, 214444, 375277, 428888, 750554, 1501108, 2626939, 3002216, 5253878, 10507756, 21015512]

約数ペア:

[(1, 21015512), (2, 10507756), (4, 5253878), (7, 3002216), (8, 2626939), (14, 1501108), (28, 750554), (49, 428888), (56, 375277), (98, 214444), (196, 107222), (392, 53611)]