21521727

素因数分解:

$3^3\times {\mathrm{373}}^1\times {\mathrm{2137}}^1$

素因数の和:2519

約数の個数: 16

約数和(自身を含む): 31984480

約数和(自身を除く): 10462753

約数列:

[1, 3, 9, 27, 373, 1119, 2137, 3357, 6411, 10071, 19233, 57699, 797101, 2391303, 7173909, 21521727]

約数ペア:

[(1, 21521727), (3, 7173909), (9, 2391303), (27, 797101), (373, 57699), (1119, 19233), (2137, 10071), (3357, 6411)]