647472721

素因数分解:

$7^2\times {\mathrm{101}}^1\times {\mathrm{130829}}^1$

素因数の和:130944

約数の個数: 12

約数和(自身を含む): 760645620

約数和(自身を除く): 113172899

約数列:

[1, 7, 49, 101, 707, 4949, 130829, 915803, 6410621, 13213729, 92496103, 647472721]

約数ペア:

[(1, 647472721), (7, 92496103), (49, 13213729), (101, 6410621), (707, 915803), (4949, 130829)]