201721347

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{43691}}^1$

素因数の和:43725

約数の個数: 24

約数和(自身を含む): 318077760

約数和(自身を除く): 116356413

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4617, 43691, 131073, 393219, 830129, 1179657, 2490387, 3538971, 7471161, 10616913, 22413483, 67240449, 201721347]

約数ペア:

[(1, 201721347), (3, 67240449), (9, 22413483), (19, 10616913), (27, 7471161), (57, 3538971), (81, 2490387), (171, 1179657), (243, 830129), (513, 393219), (1539, 131073), (4617, 43691)]