21694160

素因数分解:

$2^4\times 5^1\times {\mathrm{271177}}^1$

素因数の和:271190

約数の個数: 20

約数和(自身を含む): 50439108

約数和(自身を除く): 28744948

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271177, 542354, 1084708, 1355885, 2169416, 2711770, 4338832, 5423540, 10847080, 21694160]

約数ペア:

[(1, 21694160), (2, 10847080), (4, 5423540), (5, 4338832), (8, 2711770), (10, 2169416), (16, 1355885), (20, 1084708), (40, 542354), (80, 271177)]