20851588

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16139}}^1$

素因数の和:16179

約数の個数: 24

約数和(自身を含む): 40672800

約数和(自身を除く): 19821212

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16139, 32278, 64556, 274363, 306641, 548726, 613282, 1097452, 1226564, 5212897, 10425794, 20851588]

約数ペア:

[(1, 20851588), (2, 10425794), (4, 5212897), (17, 1226564), (19, 1097452), (34, 613282), (38, 548726), (68, 306641), (76, 274363), (323, 64556), (646, 32278), (1292, 16139)]