219990396

素因数分解:

$2^2\times 3^1\times {\mathrm{131}}^1\times {\mathrm{139943}}^1$

素因数の和:140081

約数の個数: 24

約数和(自身を含む): 517233024

約数和(自身を除く): 297242628

約数列:

[1, 2, 3, 4, 6, 12, 131, 262, 393, 524, 786, 1572, 139943, 279886, 419829, 559772, 839658, 1679316, 18332533, 36665066, 54997599, 73330132, 109995198, 219990396]

約数ペア:

[(1, 219990396), (2, 109995198), (3, 73330132), (4, 54997599), (6, 36665066), (12, 18332533), (131, 1679316), (262, 839658), (393, 559772), (524, 419829), (786, 279886), (1572, 139943)]