21751827

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{13159}}^1$

素因数の和:13210

約数の個数: 16

約数和(自身を含む): 31584000

約数和(自身を除く): 9832173

約数列:

[1, 3, 19, 29, 57, 87, 551, 1653, 13159, 39477, 250021, 381611, 750063, 1144833, 7250609, 21751827]

約数ペア:

[(1, 21751827), (3, 7250609), (19, 1144833), (29, 750063), (57, 381611), (87, 250021), (551, 39477), (1653, 13159)]