31381623

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{38317}}^1$

素因数の和:38343

約数の個数: 24

約数和(自身を含む): 55791008

約数和(自身を除く): 24409385

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 38317, 114951, 268219, 344853, 498121, 804657, 1494363, 2413971, 3486847, 4483089, 10460541, 31381623]

約数ペア:

[(1, 31381623), (3, 10460541), (7, 4483089), (9, 3486847), (13, 2413971), (21, 1494363), (39, 804657), (63, 498121), (91, 344853), (117, 268219), (273, 114951), (819, 38317)]