21673160

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{8087}}^1$

素因数の和:8165

約数の個数: 32

約数和(自身を含む): 49498560

約数和(自身を除く): 27825400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 8087, 16174, 32348, 40435, 64696, 80870, 161740, 323480, 541829, 1083658, 2167316, 2709145, 4334632, 5418290, 10836580, 21673160]

約数ペア:

[(1, 21673160), (2, 10836580), (4, 5418290), (5, 4334632), (8, 2709145), (10, 2167316), (20, 1083658), (40, 541829), (67, 323480), (134, 161740), (268, 80870), (335, 64696), (536, 40435), (670, 32348), (1340, 16174), (2680, 8087)]