21171016

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4493}}^1$

素因数の和:4549

約数の個数: 32

約数和(自身を含む): 43142400

約数和(自身を除く): 21971384

約数列:

[1, 2, 4, 8, 19, 31, 38, 62, 76, 124, 152, 248, 589, 1178, 2356, 4493, 4712, 8986, 17972, 35944, 85367, 139283, 170734, 278566, 341468, 557132, 682936, 1114264, 2646377, 5292754, 10585508, 21171016]

約数ペア:

[(1, 21171016), (2, 10585508), (4, 5292754), (8, 2646377), (19, 1114264), (31, 682936), (38, 557132), (62, 341468), (76, 278566), (124, 170734), (152, 139283), (248, 85367), (589, 35944), (1178, 17972), (2356, 8986), (4493, 4712)]