21492220

素因数分解:

$2^2\times 5^1\times {\mathrm{883}}^1\times {\mathrm{1217}}^1$

素因数の和:2109

約数の個数: 24

約数和(自身を含む): 45221904

約数和(自身を除く): 23729684

約数列:

[1, 2, 4, 5, 10, 20, 883, 1217, 1766, 2434, 3532, 4415, 4868, 6085, 8830, 12170, 17660, 24340, 1074611, 2149222, 4298444, 5373055, 10746110, 21492220]

約数ペア:

[(1, 21492220), (2, 10746110), (4, 5373055), (5, 4298444), (10, 2149222), (20, 1074611), (883, 24340), (1217, 17660), (1766, 12170), (2434, 8830), (3532, 6085), (4415, 4868)]