21958937

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21937}}^1$

素因数の和:21968

約数の個数: 16

約数和(自身を含む): 29484672

約数和(自身を除く): 7525735

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21937, 153559, 241307, 285181, 1689149, 1996267, 3136991, 21958937]

約数ペア:

[(1, 21958937), (7, 3136991), (11, 1996267), (13, 1689149), (77, 285181), (91, 241307), (143, 153559), (1001, 21937)]