21160139

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21139}}^1$

素因数の和:21170

約数の個数: 16

約数和(自身を含む): 28412160

約数和(自身を除く): 7252021

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21139, 147973, 232529, 274807, 1627703, 1923649, 3022877, 21160139]

約数ペア:

[(1, 21160139), (7, 3022877), (11, 1923649), (13, 1627703), (77, 274807), (91, 232529), (143, 147973), (1001, 21139)]