1396521

素因数分解:

$3^5\times 7^1\times {\mathrm{821}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 2393664

約数和(自身を除く): 997143

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 821, 1701, 2463, 5747, 7389, 17241, 22167, 51723, 66501, 155169, 199503, 465507, 1396521]

約数ペア:

[(1, 1396521), (3, 465507), (7, 199503), (9, 155169), (21, 66501), (27, 51723), (63, 22167), (81, 17241), (189, 7389), (243, 5747), (567, 2463), (821, 1701)]