18619856

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{40129}}^1$

素因数の和:40166

約数の個数: 20

約数和(自身を含む): 37320900

約数和(自身を除く): 18701044

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 40129, 80258, 160516, 321032, 642064, 1163741, 2327482, 4654964, 9309928, 18619856]

約数ペア:

[(1, 18619856), (2, 9309928), (4, 4654964), (8, 2327482), (16, 1163741), (29, 642064), (58, 321032), (116, 160516), (232, 80258), (464, 40129)]