21063591

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{4969}}^1$

素因数の和:5135

約数の個数: 16

約数和(自身を含む): 31410400

約数和(自身を除く): 10346809

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 4969, 14907, 44721, 134163, 780133, 2340399, 7021197, 21063591]

約数ペア:

[(1, 21063591), (3, 7021197), (9, 2340399), (27, 780133), (157, 134163), (471, 44721), (1413, 14907), (4239, 4969)]