20954608

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1879}}^1$

素因数の和:1945

約数の個数: 40

約数和(自身を含む): 44059680

約数和(自身を除く): 23105072

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 82, 136, 164, 272, 328, 656, 697, 1394, 1879, 2788, 3758, 5576, 7516, 11152, 15032, 30064, 31943, 63886, 77039, 127772, 154078, 255544, 308156, 511088, 616312, 1232624, 1309663, 2619326, 5238652, 10477304, 20954608]

約数ペア:

[(1, 20954608), (2, 10477304), (4, 5238652), (8, 2619326), (16, 1309663), (17, 1232624), (34, 616312), (41, 511088), (68, 308156), (82, 255544), (136, 154078), (164, 127772), (272, 77039), (328, 63886), (656, 31943), (697, 30064), (1394, 15032), (1879, 11152), (2788, 7516), (3758, 5576)]