201222315

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{638801}}^1$

素因数の和:638819

約数の個数: 24

約数和(自身を含む): 398612448

約数和(自身を除く): 197390133

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 638801, 1916403, 3194005, 4471607, 5749209, 9582015, 13414821, 22358035, 28746045, 40244463, 67074105, 201222315]

約数ペア:

[(1, 201222315), (3, 67074105), (5, 40244463), (7, 28746045), (9, 22358035), (15, 13414821), (21, 9582015), (35, 5749209), (45, 4471607), (63, 3194005), (105, 1916403), (315, 638801)]