39171321

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{647}}^1$

素因数の和:722

約数の個数: 36

約数和(自身を含む): 66920256

約数和(自身を除く): 27748935

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 647, 651, 961, 1941, 1953, 2883, 4529, 5823, 6727, 8649, 13587, 20057, 20181, 40761, 60171, 60543, 140399, 180513, 421197, 621767, 1263591, 1865301, 4352369, 5595903, 13057107, 39171321]

約数ペア:

[(1, 39171321), (3, 13057107), (7, 5595903), (9, 4352369), (21, 1865301), (31, 1263591), (63, 621767), (93, 421197), (217, 180513), (279, 140399), (647, 60543), (651, 60171), (961, 40761), (1941, 20181), (1953, 20057), (2883, 13587), (4529, 8649), (5823, 6727)]