20858268

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40423}}^1$

素因数の和:40473

約数の個数: 24

約数和(自身を含む): 49802368

約数和(自身を除く): 28944100

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40423, 80846, 121269, 161692, 242538, 485076, 1738189, 3476378, 5214567, 6952756, 10429134, 20858268]

約数ペア:

[(1, 20858268), (2, 10429134), (3, 6952756), (4, 5214567), (6, 3476378), (12, 1738189), (43, 485076), (86, 242538), (129, 161692), (172, 121269), (258, 80846), (516, 40423)]