21029206

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13463}}^1$

素因数の和:13547

約数の個数: 16

約数和(自身を含む): 34898688

約数和(自身を除く): 13869482

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13463, 26926, 148093, 296186, 955873, 1911746, 10514603, 21029206]

約数ペア:

[(1, 21029206), (2, 10514603), (11, 1911746), (22, 955873), (71, 296186), (142, 148093), (781, 26926), (1562, 13463)]