21215103

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{77711}}^1$

素因数の和:77734

約数の個数: 16

約数和(自身を含む): 34814976

約数和(自身を除く): 13599873

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 77711, 233133, 543977, 1010243, 1631931, 3030729, 7071701, 21215103]

約数ペア:

[(1, 21215103), (3, 7071701), (7, 3030729), (13, 1631931), (21, 1010243), (39, 543977), (91, 233133), (273, 77711)]