21120456

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{125717}}^1$

素因数の和:125733

約数の個数: 32

約数和(自身を含む): 60344640

約数和(自身を除く): 39224184

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 125717, 251434, 377151, 502868, 754302, 880019, 1005736, 1508604, 1760038, 2640057, 3017208, 3520076, 5280114, 7040152, 10560228, 21120456]

約数ペア:

[(1, 21120456), (2, 10560228), (3, 7040152), (4, 5280114), (6, 3520076), (7, 3017208), (8, 2640057), (12, 1760038), (14, 1508604), (21, 1005736), (24, 880019), (28, 754302), (42, 502868), (56, 377151), (84, 251434), (168, 125717)]