668832213

素因数分解:

$3^1\times 7^2\times {\mathrm{1867}}^1\times {\mathrm{2437}}^1$

素因数の和:4321

約数の個数: 24

約数和(自身を含む): 1038353952

約数和(自身を除く): 369521739

約数列:

[1, 3, 7, 21, 49, 147, 1867, 2437, 5601, 7311, 13069, 17059, 39207, 51177, 91483, 119413, 274449, 358239, 4549879, 13649637, 31849153, 95547459, 222944071, 668832213]

約数ペア:

[(1, 668832213), (3, 222944071), (7, 95547459), (21, 31849153), (49, 13649637), (147, 4549879), (1867, 358239), (2437, 274449), (5601, 119413), (7311, 91483), (13069, 51177), (17059, 39207)]