21860839

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21839}}^1$

素因数の和:21870

約数の個数: 16

約数和(自身を含む): 29352960

約数和(自身を除く): 7492121

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21839, 152873, 240229, 283907, 1681603, 1987349, 3122977, 21860839]

約数ペア:

[(1, 21860839), (7, 3122977), (11, 1987349), (13, 1681603), (77, 283907), (91, 240229), (143, 152873), (1001, 21839)]