259119

素因数分解:

$3^4\times 7^1\times {\mathrm{457}}^1$

素因数の和:476

約数の個数: 20

約数和(自身を含む): 443344

約数和(自身を除く): 184225

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 457, 567, 1371, 3199, 4113, 9597, 12339, 28791, 37017, 86373, 259119]

約数ペア:

[(1, 259119), (3, 86373), (7, 37017), (9, 28791), (21, 12339), (27, 9597), (63, 4113), (81, 3199), (189, 1371), (457, 567)]