642000597

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{256903}}^1$

素因数の和:256937

約数の個数: 24

約数和(自身を含む): 1054334016

約数和(自身を除く): 412333419

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 256903, 770709, 1798321, 4367351, 5394963, 12588247, 13102053, 30571457, 37764741, 91714371, 214000199, 642000597]

約数ペア:

[(1, 642000597), (3, 214000199), (7, 91714371), (17, 37764741), (21, 30571457), (49, 13102053), (51, 12588247), (119, 5394963), (147, 4367351), (357, 1798321), (833, 770709), (2499, 256903)]