20427996

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 49454720

約数和(自身を除く): 29026724

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 139, 148, 222, 278, 331, 417, 444, 556, 662, 834, 993, 1324, 1668, 1986, 3972, 5143, 10286, 12247, 15429, 20572, 24494, 30858, 36741, 46009, 48988, 61716, 73482, 92018, 138027, 146964, 184036, 276054, 552108, 1702333, 3404666, 5106999, 6809332, 10213998, 20427996]

約数ペア:

[(1, 20427996), (2, 10213998), (3, 6809332), (4, 5106999), (6, 3404666), (12, 1702333), (37, 552108), (74, 276054), (111, 184036), (139, 146964), (148, 138027), (222, 92018), (278, 73482), (331, 61716), (417, 48988), (444, 46009), (556, 36741), (662, 30858), (834, 24494), (993, 20572), (1324, 15429), (1668, 12247), (1986, 10286), (3972, 5143)]