21002839

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{761}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 24835104

約数和(自身を除く): 3832265

約数列:

[1, 11, 13, 143, 193, 761, 2123, 2509, 8371, 9893, 27599, 108823, 146873, 1615603, 1909349, 21002839]

約数ペア:

[(1, 21002839), (11, 1909349), (13, 1615603), (143, 146873), (193, 108823), (761, 27599), (2123, 9893), (2509, 8371)]