17781369

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{5483}}^1$

素因数の和:5556

約数の個数: 16

約数和(自身を含む): 25270272

約数和(自身を除く): 7488903

約数列:

[1, 3, 23, 47, 69, 141, 1081, 3243, 5483, 16449, 126109, 257701, 378327, 773103, 5927123, 17781369]

約数ペア:

[(1, 17781369), (3, 5927123), (23, 773103), (47, 378327), (69, 257701), (141, 126109), (1081, 16449), (3243, 5483)]