21543915

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{433}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 35997696

約数和(自身を除く): 14453781

約数列:

[1, 3, 5, 15, 31, 93, 107, 155, 321, 433, 465, 535, 1299, 1605, 2165, 3317, 6495, 9951, 13423, 16585, 40269, 46331, 49755, 67115, 138993, 201345, 231655, 694965, 1436261, 4308783, 7181305, 21543915]

約数ペア:

[(1, 21543915), (3, 7181305), (5, 4308783), (15, 1436261), (31, 694965), (93, 231655), (107, 201345), (155, 138993), (321, 67115), (433, 49755), (465, 46331), (535, 40269), (1299, 16585), (1605, 13423), (2165, 9951), (3317, 6495)]