20581274

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{397}}^1$

素因数の和:459

約数の個数: 36

約数和(自身を含む): 37636074

約数和(自身を除く): 17054800

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 397, 529, 794, 1058, 1127, 2254, 2779, 3703, 5558, 7406, 9131, 18262, 19453, 25921, 38906, 51842, 63917, 127834, 210013, 420026, 447419, 894838, 1470091, 2940182, 10290637, 20581274]

約数ペア:

[(1, 20581274), (2, 10290637), (7, 2940182), (14, 1470091), (23, 894838), (46, 447419), (49, 420026), (98, 210013), (161, 127834), (322, 63917), (397, 51842), (529, 38906), (794, 25921), (1058, 19453), (1127, 18262), (2254, 9131), (2779, 7406), (3703, 5558)]