20749278836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2141}}^1\times {\mathrm{16943}}^1$

素因数の和:19112

約数の個数: 48

約数和(自身を含む): 42681800448

約数和(自身を除く): 21932521612

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 2141, 4282, 8564, 16943, 23551, 27833, 33886, 47102, 55666, 67772, 94204, 111332, 186373, 220259, 306163, 372746, 440518, 612326, 745492, 881036, 1224652, 2422849, 4845698, 9691396, 36274963, 72549926, 145099852, 399024593, 471574519, 798049186, 943149038, 1596098372, 1886298076, 5187319709, 10374639418, 20749278836]

約数ペア:

[(1, 20749278836), (2, 10374639418), (4, 5187319709), (11, 1886298076), (13, 1596098372), (22, 943149038), (26, 798049186), (44, 471574519), (52, 399024593), (143, 145099852), (286, 72549926), (572, 36274963), (2141, 9691396), (4282, 4845698), (8564, 2422849), (16943, 1224652), (23551, 881036), (27833, 745492), (33886, 612326), (47102, 440518), (55666, 372746), (67772, 306163), (94204, 220259), (111332, 186373)]