21890824

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{601}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 42802200

約数和(自身を除く): 20911376

約数列:

[1, 2, 4, 8, 29, 58, 116, 157, 232, 314, 601, 628, 1202, 1256, 2404, 4553, 4808, 9106, 17429, 18212, 34858, 36424, 69716, 94357, 139432, 188714, 377428, 754856, 2736353, 5472706, 10945412, 21890824]

約数ペア:

[(1, 21890824), (2, 10945412), (4, 5472706), (8, 2736353), (29, 754856), (58, 377428), (116, 188714), (157, 139432), (232, 94357), (314, 69716), (601, 36424), (628, 34858), (1202, 18212), (1256, 17429), (2404, 9106), (4553, 4808)]