21219685

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{4987}}^1$

素因数の和:5052

約数の個数: 16

約数和(自身を含む): 27294336

約数和(自身を除く): 6074651

約数列:

[1, 5, 23, 37, 115, 185, 851, 4255, 4987, 24935, 114701, 184519, 573505, 922595, 4243937, 21219685]

約数ペア:

[(1, 21219685), (5, 4243937), (23, 922595), (37, 573505), (115, 184519), (185, 114701), (851, 24935), (4255, 4987)]