19856493

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{557}}^1$

素因数の和:813

約数の個数: 24

約数和(自身を含む): 30553848

約数和(自身を除く): 10697355

約数列:

[1, 3, 9, 17, 51, 153, 233, 557, 699, 1671, 2097, 3961, 5013, 9469, 11883, 28407, 35649, 85221, 129781, 389343, 1168029, 2206277, 6618831, 19856493]

約数ペア:

[(1, 19856493), (3, 6618831), (9, 2206277), (17, 1168029), (51, 389343), (153, 129781), (233, 85221), (557, 35649), (699, 28407), (1671, 11883), (2097, 9469), (3961, 5013)]