21828345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18899}}^1$

素因数の和:18925

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 21717255

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 18899, 56697, 94495, 132293, 207889, 283485, 396879, 623667, 661465, 1039445, 1455223, 1984395, 3118335, 4365669, 7276115, 21828345]

約数ペア:

[(1, 21828345), (3, 7276115), (5, 4365669), (7, 3118335), (11, 1984395), (15, 1455223), (21, 1039445), (33, 661465), (35, 623667), (55, 396879), (77, 283485), (105, 207889), (165, 132293), (231, 94495), (385, 56697), (1155, 18899)]