21855190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{312217}}^1$

素因数の和:312231

約数の個数: 16

約数和(自身を含む): 44959392

約数和(自身を除く): 23104202

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 312217, 624434, 1561085, 2185519, 3122170, 4371038, 10927595, 21855190]

約数ペア:

[(1, 21855190), (2, 10927595), (5, 4371038), (7, 3122170), (10, 2185519), (14, 1561085), (35, 624434), (70, 312217)]