21612105

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16561}}^1$

素因数の和:16601

約数の個数: 24

約数和(自身を含む): 38755080

約数和(自身を除く): 17142975

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16561, 49683, 82805, 149049, 248415, 480269, 745245, 1440807, 2401345, 4322421, 7204035, 21612105]

約数ペア:

[(1, 21612105), (3, 7204035), (5, 4322421), (9, 2401345), (15, 1440807), (29, 745245), (45, 480269), (87, 248415), (145, 149049), (261, 82805), (435, 49683), (1305, 16561)]