18909639

素因数分解:

$3^3\times 7^2\times {\mathrm{14293}}^1$

素因数の和:14316

約数の個数: 24

約数和(自身を含む): 32590320

約数和(自身を除く): 13680681

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 14293, 42879, 100051, 128637, 300153, 385911, 700357, 900459, 2101071, 2701377, 6303213, 18909639]

約数ペア:

[(1, 18909639), (3, 6303213), (7, 2701377), (9, 2101071), (21, 900459), (27, 700357), (49, 385911), (63, 300153), (147, 128637), (189, 100051), (441, 42879), (1323, 14293)]