15360921

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{2671}}^1$

素因数の和:2754

約数の個数: 20

約数和(自身を含む): 23278464

約数和(自身を除く): 7917543

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 2671, 5751, 8013, 24039, 72117, 189641, 216351, 568923, 1706769, 5120307, 15360921]

約数ペア:

[(1, 15360921), (3, 5120307), (9, 1706769), (27, 568923), (71, 216351), (81, 189641), (213, 72117), (639, 24039), (1917, 8013), (2671, 5751)]