21247604

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 44513280

約数和(自身を除く): 23265676

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 137, 191, 203, 274, 382, 406, 548, 764, 812, 959, 1337, 1918, 2674, 3836, 3973, 5348, 5539, 7946, 11078, 15892, 22156, 26167, 27811, 38773, 52334, 55622, 77546, 104668, 111244, 155092, 183169, 366338, 732676, 758843, 1517686, 3035372, 5311901, 10623802, 21247604]

約数ペア:

[(1, 21247604), (2, 10623802), (4, 5311901), (7, 3035372), (14, 1517686), (28, 758843), (29, 732676), (58, 366338), (116, 183169), (137, 155092), (191, 111244), (203, 104668), (274, 77546), (382, 55622), (406, 52334), (548, 38773), (764, 27811), (812, 26167), (959, 22156), (1337, 15892), (1918, 11078), (2674, 7946), (3836, 5539), (3973, 5348)]