16347681

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{5521}}^1$

素因数の和:5581

約数の個数: 24

約数和(自身を含む): 27565824

約数和(自身を除く): 11218143

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 5521, 16563, 38647, 49689, 115941, 259487, 347823, 778461, 1816409, 2335383, 5449227, 16347681]

約数ペア:

[(1, 16347681), (3, 5449227), (7, 2335383), (9, 1816409), (21, 778461), (47, 347823), (63, 259487), (141, 115941), (329, 49689), (423, 38647), (987, 16563), (2961, 5521)]