21183836

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{5107}}^1$

素因数の和:5189

約数の個数: 24

約数和(自身を含む): 39903696

約数和(自身を除く): 18719860

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 5107, 10214, 20428, 86819, 173638, 311527, 347276, 623054, 1246108, 5295959, 10591918, 21183836]

約数ペア:

[(1, 21183836), (2, 10591918), (4, 5295959), (17, 1246108), (34, 623054), (61, 347276), (68, 311527), (122, 173638), (244, 86819), (1037, 20428), (2074, 10214), (4148, 5107)]