21003276

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4099}}^1$

素因数の和:4174

約数の個数: 48

約数和(自身を含む): 56940800

約数和(自身を除く): 35937524

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 61, 84, 122, 183, 244, 366, 427, 732, 854, 1281, 1708, 2562, 4099, 5124, 8198, 12297, 16396, 24594, 28693, 49188, 57386, 86079, 114772, 172158, 250039, 344316, 500078, 750117, 1000156, 1500234, 1750273, 3000468, 3500546, 5250819, 7001092, 10501638, 21003276]

約数ペア:

[(1, 21003276), (2, 10501638), (3, 7001092), (4, 5250819), (6, 3500546), (7, 3000468), (12, 1750273), (14, 1500234), (21, 1000156), (28, 750117), (42, 500078), (61, 344316), (84, 250039), (122, 172158), (183, 114772), (244, 86079), (366, 57386), (427, 49188), (732, 28693), (854, 24594), (1281, 16396), (1708, 12297), (2562, 8198), (4099, 5124)]