20963710

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51131}}^1$

素因数の和:51179

約数の個数: 16

約数和(自身を含む): 38655792

約数和(自身を除く): 17692082

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 51131, 102262, 255655, 511310, 2096371, 4192742, 10481855, 20963710]

約数ペア:

[(1, 20963710), (2, 10481855), (5, 4192742), (10, 2096371), (41, 511310), (82, 255655), (205, 102262), (410, 51131)]