40260213

素因数分解:

$3^3\times 7^2\times {\mathrm{30431}}^1$

素因数の和:30454

約数の個数: 24

約数和(自身を含む): 69384960

約数和(自身を除く): 29124747

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 30431, 91293, 213017, 273879, 639051, 821637, 1491119, 1917153, 4473357, 5751459, 13420071, 40260213]

約数ペア:

[(1, 40260213), (3, 13420071), (7, 5751459), (9, 4473357), (21, 1917153), (27, 1491119), (49, 821637), (63, 639051), (147, 273879), (189, 213017), (441, 91293), (1323, 30431)]