21909927

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{1619}}^1$

素因数の和:1982

約数の個数: 16

約数和(自身を含む): 31570560

約数和(自身を除く): 9660633

約数列:

[1, 3, 13, 39, 347, 1041, 1619, 4511, 4857, 13533, 21047, 63141, 561793, 1685379, 7303309, 21909927]

約数ペア:

[(1, 21909927), (3, 7303309), (13, 1685379), (39, 561793), (347, 63141), (1041, 21047), (1619, 13533), (4511, 4857)]