217616564

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{449621}}^1$

素因数の和:449647

約数の個数: 18

約数和(自身を含む): 418598082

約数和(自身を除く): 200981518

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 449621, 899242, 1798484, 4945831, 9891662, 19783324, 54404141, 108808282, 217616564]

約数ペア:

[(1, 217616564), (2, 108808282), (4, 54404141), (11, 19783324), (22, 9891662), (44, 4945831), (121, 1798484), (242, 899242), (484, 449621)]