257423913

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{167267}}^1$

素因数の和:167298

約数の個数: 20

約数和(自身を含む): 404788560

約数和(自身を除く): 147364647

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 167267, 501801, 1505403, 3178073, 4516209, 9534219, 13548627, 28602657, 85807971, 257423913]

約数ペア:

[(1, 257423913), (3, 85807971), (9, 28602657), (19, 13548627), (27, 9534219), (57, 4516209), (81, 3178073), (171, 1505403), (513, 501801), (1539, 167267)]