21262395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 22283205

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 41, 55, 77, 105, 123, 165, 205, 231, 287, 385, 449, 451, 615, 861, 1155, 1347, 1353, 1435, 2245, 2255, 3143, 3157, 4305, 4939, 6735, 6765, 9429, 9471, 14817, 15715, 15785, 18409, 24695, 34573, 47145, 47355, 55227, 74085, 92045, 103719, 128863, 172865, 202499, 276135, 386589, 518595, 607497, 644315, 1012495, 1417493, 1932945, 3037485, 4252479, 7087465, 21262395]

約数ペア:

[(1, 21262395), (3, 7087465), (5, 4252479), (7, 3037485), (11, 1932945), (15, 1417493), (21, 1012495), (33, 644315), (35, 607497), (41, 518595), (55, 386589), (77, 276135), (105, 202499), (123, 172865), (165, 128863), (205, 103719), (231, 92045), (287, 74085), (385, 55227), (449, 47355), (451, 47145), (615, 34573), (861, 24695), (1155, 18409), (1347, 15785), (1353, 15715), (1435, 14817), (2245, 9471), (2255, 9429), (3143, 6765), (3157, 6735), (4305, 4939)]