261288399

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{55229}}^1$

素因数の和:55334

約数の個数: 16

約数和(自身を含む): 371145600

約数和(自身を除く): 109857201

約数列:

[1, 3, 19, 57, 83, 249, 1577, 4731, 55229, 165687, 1049351, 3148053, 4584007, 13752021, 87096133, 261288399]

約数ペア:

[(1, 261288399), (3, 87096133), (19, 13752021), (57, 4584007), (83, 3148053), (249, 1049351), (1577, 165687), (4731, 55229)]