21615477

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{5381}}^1$

素因数の和:5500

約数の個数: 16

約数和(自身を含む): 31344768

約数和(自身を除く): 9729291

約数列:

[1, 3, 13, 39, 103, 309, 1339, 4017, 5381, 16143, 69953, 209859, 554243, 1662729, 7205159, 21615477]

約数ペア:

[(1, 21615477), (3, 7205159), (13, 1662729), (39, 554243), (103, 209859), (309, 69953), (1339, 16143), (4017, 5381)]