18151371

素因数分解:

$3^6\times 7^1\times {\mathrm{3557}}^1$

素因数の和:3582

約数の個数: 28

約数和(自身を含む): 31111152

約数和(自身を除く): 12959781

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 3557, 5103, 10671, 24899, 32013, 74697, 96039, 224091, 288117, 672273, 864351, 2016819, 2593053, 6050457, 18151371]

約数ペア:

[(1, 18151371), (3, 6050457), (7, 2593053), (9, 2016819), (21, 864351), (27, 672273), (63, 288117), (81, 224091), (189, 96039), (243, 74697), (567, 32013), (729, 24899), (1701, 10671), (3557, 5103)]