21142065

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{743}}^1$

素因数の和:1029

約数の個数: 32

約数和(自身を含む): 38854656

約数和(自身を除く): 17712591

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 271, 743, 813, 1355, 1897, 2229, 3715, 4065, 5201, 5691, 9485, 11145, 15603, 26005, 28455, 78015, 201353, 604059, 1006765, 1409471, 3020295, 4228413, 7047355, 21142065]

約数ペア:

[(1, 21142065), (3, 7047355), (5, 4228413), (7, 3020295), (15, 1409471), (21, 1006765), (35, 604059), (105, 201353), (271, 78015), (743, 28455), (813, 26005), (1355, 15603), (1897, 11145), (2229, 9485), (3715, 5691), (4065, 5201)]