21660452

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44753}}^1$

素因数の和:44779

約数の個数: 18

約数和(自身を含む): 41665974

約数和(自身を除く): 20005522

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44753, 89506, 179012, 492283, 984566, 1969132, 5415113, 10830226, 21660452]

約数ペア:

[(1, 21660452), (2, 10830226), (4, 5415113), (11, 1969132), (22, 984566), (44, 492283), (121, 179012), (242, 89506), (484, 44753)]