21296937

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{7879}}^1$

素因数の和:7952

約数の個数: 16

約数和(自身を含む): 30637440

約数和(自身を除く): 9340503

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 7879, 23637, 133943, 401829, 417587, 1252761, 7098979, 21296937]

約数ペア:

[(1, 21296937), (3, 7098979), (17, 1252761), (51, 417587), (53, 401829), (159, 133943), (901, 23637), (2703, 7879)]