21721932325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{617}}^1\times {\mathrm{82837}}^1$

素因数の和:83481

約数の個数: 24

約数和(自身を含む): 28566187272

約数和(自身を除く): 6844254947

約数列:

[1, 5, 17, 25, 85, 425, 617, 3085, 10489, 15425, 52445, 82837, 262225, 414185, 1408229, 2070925, 7041145, 35205725, 51110429, 255552145, 868877293, 1277760725, 4344386465, 21721932325]

約数ペア:

[(1, 21721932325), (5, 4344386465), (17, 1277760725), (25, 868877293), (85, 255552145), (425, 51110429), (617, 35205725), (3085, 7041145), (10489, 2070925), (15425, 1408229), (52445, 414185), (82837, 262225)]