21055281

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{23473}}^1$

素因数の和:23512

約数の個数: 16

約数和(自身を含む): 31549056

約数和(自身を除く): 10493775

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 23473, 70419, 305149, 539879, 915447, 1619637, 7018427, 21055281]

約数ペア:

[(1, 21055281), (3, 7018427), (13, 1619637), (23, 915447), (39, 539879), (69, 305149), (299, 70419), (897, 23473)]