21801021

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{38861}}^1$

素因数の和:38892

約数の個数: 16

約数和(自身を含む): 33576768

約数和(自身を除く): 11775747

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 38861, 116583, 427471, 660637, 1282413, 1981911, 7267007, 21801021]

約数ペア:

[(1, 21801021), (3, 7267007), (11, 1981911), (17, 1282413), (33, 660637), (51, 427471), (187, 116583), (561, 38861)]