21245364

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{84307}}^1$

素因数の和:84324

約数の個数: 36

約数和(自身を含む): 61376224

約数和(自身を除く): 40130860

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 84307, 168614, 252921, 337228, 505842, 590149, 758763, 1011684, 1180298, 1517526, 1770447, 2360596, 3035052, 3540894, 5311341, 7081788, 10622682, 21245364]

約数ペア:

[(1, 21245364), (2, 10622682), (3, 7081788), (4, 5311341), (6, 3540894), (7, 3035052), (9, 2360596), (12, 1770447), (14, 1517526), (18, 1180298), (21, 1011684), (28, 758763), (36, 590149), (42, 505842), (63, 337228), (84, 252921), (126, 168614), (252, 84307)]