20798973

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10457}}^1$

素因数の和:10493

約数の個数: 24

約数和(自身を含む): 34260408

約数和(自身を除く): 13461435

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10457, 31371, 94113, 135941, 177769, 407823, 533307, 1223469, 1599921, 2310997, 6932991, 20798973]

約数ペア:

[(1, 20798973), (3, 6932991), (9, 2310997), (13, 1599921), (17, 1223469), (39, 533307), (51, 407823), (117, 177769), (153, 135941), (221, 94113), (663, 31371), (1989, 10457)]