21704433

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 31825920

約数和(自身を除く): 10121487

約数列:

[1, 3, 23, 31, 69, 73, 93, 139, 219, 417, 713, 1679, 2139, 2263, 3197, 4309, 5037, 6789, 9591, 10147, 12927, 30441, 52049, 99107, 156147, 233381, 297321, 314557, 700143, 943671, 7234811, 21704433]

約数ペア:

[(1, 21704433), (3, 7234811), (23, 943671), (31, 700143), (69, 314557), (73, 297321), (93, 233381), (139, 156147), (219, 99107), (417, 52049), (713, 30441), (1679, 12927), (2139, 10147), (2263, 9591), (3197, 6789), (4309, 5037)]