21121576

素因数分解:

$2^3\times 7^1\times {\mathrm{377171}}^1$

素因数の和:377184

約数の個数: 16

約数和(自身を含む): 45260640

約数和(自身を除く): 24139064

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 377171, 754342, 1508684, 2640197, 3017368, 5280394, 10560788, 21121576]

約数ペア:

[(1, 21121576), (2, 10560788), (4, 5280394), (7, 3017368), (8, 2640197), (14, 1508684), (28, 754342), (56, 377171)]