21261158545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1\times {\mathrm{797}}^1$

素因数の和:1210

約数の個数: 64

約数和(自身を含む): 29901021696

約数和(自身を除く): 8639863151

約数列:

[1, 5, 11, 17, 55, 85, 103, 187, 277, 515, 797, 935, 1133, 1385, 1751, 3047, 3985, 4709, 5665, 8755, 8767, 13549, 15235, 19261, 23545, 28531, 43835, 51799, 67745, 82091, 96305, 142655, 149039, 220769, 258995, 313841, 410455, 485027, 745195, 903001, 1103845, 1395547, 1569205, 2425135, 2428459, 3753073, 4515005, 5335297, 6977735, 12142295, 15351017, 18765365, 22739207, 26676485, 41283803, 76755085, 113696035, 206419015, 250131277, 386566519, 1250656385, 1932832595, 4252231709, 21261158545]

約数ペア:

[(1, 21261158545), (5, 4252231709), (11, 1932832595), (17, 1250656385), (55, 386566519), (85, 250131277), (103, 206419015), (187, 113696035), (277, 76755085), (515, 41283803), (797, 26676485), (935, 22739207), (1133, 18765365), (1385, 15351017), (1751, 12142295), (3047, 6977735), (3985, 5335297), (4709, 4515005), (5665, 3753073), (8755, 2428459), (8767, 2425135), (13549, 1569205), (15235, 1395547), (19261, 1103845), (23545, 903001), (28531, 745195), (43835, 485027), (51799, 410455), (67745, 313841), (82091, 258995), (96305, 220769), (142655, 149039)]