21013886

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{5701}}^1$

素因数の和:5819

約数の個数: 16

約数和(自身を含む): 33527760

約数和(自身を除く): 12513874

約数列:

[1, 2, 19, 38, 97, 194, 1843, 3686, 5701, 11402, 108319, 216638, 552997, 1105994, 10506943, 21013886]

約数ペア:

[(1, 21013886), (2, 10506943), (19, 1105994), (38, 552997), (97, 216638), (194, 108319), (1843, 11402), (3686, 5701)]