21469217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2707}}^1$

素因数の和:2828

約数の個数: 16

約数和(自身を含む): 27036672

約数和(自身を除く): 5567455

約数列:

[1, 7, 11, 77, 103, 721, 1133, 2707, 7931, 18949, 29777, 208439, 278821, 1951747, 3067031, 21469217]

約数ペア:

[(1, 21469217), (7, 3067031), (11, 1951747), (77, 278821), (103, 208439), (721, 29777), (1133, 18949), (2707, 7931)]