20307315

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{3947}}^1$

素因数の和:3976

約数の個数: 32

約数和(自身を含む): 37900800

約数和(自身を除く): 17593485

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 3947, 5145, 11841, 19735, 27629, 59205, 82887, 138145, 193403, 414435, 580209, 967015, 1353821, 2901045, 4061463, 6769105, 20307315]

約数ペア:

[(1, 20307315), (3, 6769105), (5, 4061463), (7, 2901045), (15, 1353821), (21, 967015), (35, 580209), (49, 414435), (105, 193403), (147, 138145), (245, 82887), (343, 59205), (735, 27629), (1029, 19735), (1715, 11841), (3947, 5145)]