21183669

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{547}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 33112352

約数和(自身を除く): 11928683

約数列:

[1, 3, 9, 13, 39, 117, 331, 547, 993, 1641, 2979, 4303, 4923, 7111, 12909, 21333, 38727, 63999, 181057, 543171, 1629513, 2353741, 7061223, 21183669]

約数ペア:

[(1, 21183669), (3, 7061223), (9, 2353741), (13, 1629513), (39, 543171), (117, 181057), (331, 63999), (547, 38727), (993, 21333), (1641, 12909), (2979, 7111), (4303, 4923)]