20974648

素因数分解:

$2^3\times {\mathrm{1103}}^1\times {\mathrm{2377}}^1$

素因数の和:3486

約数の個数: 16

約数和(自身を含む): 39379680

約数和(自身を除く): 18405032

約数列:

[1, 2, 4, 8, 1103, 2206, 2377, 4412, 4754, 8824, 9508, 19016, 2621831, 5243662, 10487324, 20974648]

約数ペア:

[(1, 20974648), (2, 10487324), (4, 5243662), (8, 2621831), (1103, 19016), (2206, 9508), (2377, 8824), (4412, 4754)]