21570256

素因数分解:

$2^4\times {\mathrm{691}}^1\times {\mathrm{1951}}^1$

素因数の和:2650

約数の個数: 20

約数和(自身を含む): 41874304

約数和(自身を除く): 20304048

約数列:

[1, 2, 4, 8, 16, 691, 1382, 1951, 2764, 3902, 5528, 7804, 11056, 15608, 31216, 1348141, 2696282, 5392564, 10785128, 21570256]

約数ペア:

[(1, 21570256), (2, 10785128), (4, 5392564), (8, 2696282), (16, 1348141), (691, 31216), (1382, 15608), (1951, 11056), (2764, 7804), (3902, 5528)]