21111217

素因数分解:

${\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1021}}^1$

素因数の和:1104

約数の個数: 16

約数和(自身を含む): 23546880

約数和(自身を除く): 2435663

約数列:

[1, 23, 29, 31, 667, 713, 899, 1021, 20677, 23483, 29609, 31651, 681007, 727973, 917879, 21111217]

約数ペア:

[(1, 21111217), (23, 917879), (29, 727973), (31, 681007), (667, 31651), (713, 29609), (899, 23483), (1021, 20677)]