21088737

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{359}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 31337280

約数和(自身を除く): 10248543

約数列:

[1, 3, 9, 61, 107, 183, 321, 359, 549, 963, 1077, 3231, 6527, 19581, 21899, 38413, 58743, 65697, 115239, 197091, 345717, 2343193, 7029579, 21088737]

約数ペア:

[(1, 21088737), (3, 7029579), (9, 2343193), (61, 345717), (107, 197091), (183, 115239), (321, 65697), (359, 58743), (549, 38413), (963, 21899), (1077, 19581), (3231, 6527)]