15992991

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2287}}^1$

素因数の和:2340

約数の個数: 32

約数和(自身を含む): 27822080

約数和(自身を除く): 11829089

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2287, 2331, 6861, 6993, 16009, 20583, 48027, 61749, 84619, 144081, 253857, 432243, 592333, 761571, 1776999, 2284713, 5330997, 15992991]

約数ペア:

[(1, 15992991), (3, 5330997), (7, 2284713), (9, 1776999), (21, 761571), (27, 592333), (37, 432243), (63, 253857), (111, 144081), (189, 84619), (259, 61749), (333, 48027), (777, 20583), (999, 16009), (2287, 6993), (2331, 6861)]