1915731

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{353}}^1$

素因数の和:432

約数の個数: 20

約数和(自身を含む): 2912712

約数和(自身を除く): 996981

約数列:

[1, 3, 9, 27, 67, 81, 201, 353, 603, 1059, 1809, 3177, 5427, 9531, 23651, 28593, 70953, 212859, 638577, 1915731]

約数ペア:

[(1, 1915731), (3, 638577), (9, 212859), (27, 70953), (67, 28593), (81, 23651), (201, 9531), (353, 5427), (603, 3177), (1059, 1809)]