21539265

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4211}}^1$

素因数の和:4261

約数の個数: 32

約数和(自身を含む): 38817792

約数和(自身を除く): 17278527

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4211, 5115, 12633, 21055, 46321, 63165, 130541, 138963, 231605, 391623, 652705, 694815, 1435951, 1958115, 4307853, 7179755, 21539265]

約数ペア:

[(1, 21539265), (3, 7179755), (5, 4307853), (11, 1958115), (15, 1435951), (31, 694815), (33, 652705), (55, 391623), (93, 231605), (155, 138963), (165, 130541), (341, 63165), (465, 46321), (1023, 21055), (1705, 12633), (4211, 5115)]