1978691

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:262

約数の個数: 16

約数和(自身を含む): 2364768

約数和(自身を除く): 386077

約数列:

[1, 11, 13, 101, 137, 143, 1111, 1313, 1507, 1781, 13837, 14443, 19591, 152207, 179881, 1978691]

約数ペア:

[(1, 1978691), (11, 179881), (13, 152207), (101, 19591), (137, 14443), (143, 13837), (1111, 1781), (1313, 1507)]