161109

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:48

約数の個数: 28

約数和(自身を含む): 275436

約数和(自身を除く): 114327

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 243, 351, 459, 663, 729, 1053, 1377, 1989, 3159, 4131, 5967, 9477, 12393, 17901, 53703, 161109]

約数ペア:

[(1, 161109), (3, 53703), (9, 17901), (13, 12393), (17, 9477), (27, 5967), (39, 4131), (51, 3159), (81, 1989), (117, 1377), (153, 1053), (221, 729), (243, 663), (351, 459)]