397446399

素因数分解:

$3^3\times 7^2\times {\mathrm{300413}}^1$

素因数の和:300436

約数の個数: 24

約数和(自身を含む): 684943920

約数和(自身を除く): 287497521

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 300413, 901239, 2102891, 2703717, 6308673, 8111151, 14720237, 18926019, 44160711, 56778057, 132482133, 397446399]

約数ペア:

[(1, 397446399), (3, 132482133), (7, 56778057), (9, 44160711), (21, 18926019), (27, 14720237), (49, 8111151), (63, 6308673), (147, 2703717), (189, 2102891), (441, 901239), (1323, 300413)]