40402719

素因数分解:

$3^4\times 7^1\times {\mathrm{71257}}^1$

素因数の和:71276

約数の個数: 20

約数和(自身を含む): 68977744

約数和(自身を除く): 28575025

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 71257, 213771, 498799, 641313, 1496397, 1923939, 4489191, 5771817, 13467573, 40402719]

約数ペア:

[(1, 40402719), (3, 13467573), (7, 5771817), (9, 4489191), (21, 1923939), (27, 1496397), (63, 641313), (81, 498799), (189, 213771), (567, 71257)]