21494143

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:486

約数の個数: 16

約数和(自身を含む): 24141312

約数和(自身を除く): 2647169

約数列:

[1, 11, 61, 103, 311, 671, 1133, 3421, 6283, 18971, 32033, 69113, 208681, 352363, 1954013, 21494143]

約数ペア:

[(1, 21494143), (11, 1954013), (61, 352363), (103, 208681), (311, 69113), (671, 32033), (1133, 18971), (3421, 6283)]