20605671

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{4463}}^1$

素因数の和:4497

約数の個数: 24

約数和(自身を含む): 32497920

約数和(自身を除く): 11892249

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4463, 4617, 13389, 40167, 84797, 120501, 254391, 361503, 763173, 1084509, 2289519, 6868557, 20605671]

約数ペア:

[(1, 20605671), (3, 6868557), (9, 2289519), (19, 1084509), (27, 763173), (57, 361503), (81, 254391), (171, 120501), (243, 84797), (513, 40167), (1539, 13389), (4463, 4617)]