21481115

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 29445120

約数和(自身を除く): 7964005

約数列:

[1, 5, 17, 19, 47, 85, 95, 235, 283, 323, 799, 893, 1415, 1615, 3995, 4465, 4811, 5377, 13301, 15181, 24055, 26885, 66505, 75905, 91409, 226117, 252719, 457045, 1130585, 1263595, 4296223, 21481115]

約数ペア:

[(1, 21481115), (5, 4296223), (17, 1263595), (19, 1130585), (47, 457045), (85, 252719), (95, 226117), (235, 91409), (283, 75905), (323, 66505), (799, 26885), (893, 24055), (1415, 15181), (1615, 13301), (3995, 5377), (4465, 4811)]