21997924

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{3331}}^1$

素因数の和:3475

約数の個数: 24

約数和(自身を含む): 41796608

約数和(自身を除く): 19798684

約数列:

[1, 2, 4, 13, 26, 52, 127, 254, 508, 1651, 3302, 3331, 6604, 6662, 13324, 43303, 86606, 173212, 423037, 846074, 1692148, 5499481, 10998962, 21997924]

約数ペア:

[(1, 21997924), (2, 10998962), (4, 5499481), (13, 1692148), (26, 846074), (52, 423037), (127, 173212), (254, 86606), (508, 43303), (1651, 13324), (3302, 6662), (3331, 6604)]