20961190

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2591}}^1$

素因数の和:3407

約数の個数: 16

約数和(自身を含む): 37791360

約数和(自身を除く): 16830170

約数列:

[1, 2, 5, 10, 809, 1618, 2591, 4045, 5182, 8090, 12955, 25910, 2096119, 4192238, 10480595, 20961190]

約数ペア:

[(1, 20961190), (2, 10480595), (5, 4192238), (10, 2096119), (809, 25910), (1618, 12955), (2591, 8090), (4045, 5182)]