21800967

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{4423}}^1$

素因数の和:4510

約数の個数: 16

約数和(自身を含む): 30578688

約数和(自身を除く): 8777721

約数列:

[1, 3, 31, 53, 93, 159, 1643, 4423, 4929, 13269, 137113, 234419, 411339, 703257, 7266989, 21800967]

約数ペア:

[(1, 21800967), (3, 7266989), (31, 703257), (53, 411339), (93, 234419), (159, 137113), (1643, 13269), (4423, 4929)]