201216988

素因数分解:

$2^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{17921}}^1$

素因数の和:18333

約数の個数: 24

約数和(自身を含む): 403460064

約数和(自身を除く): 202243076

約数列:

[1, 2, 4, 7, 14, 28, 401, 802, 1604, 2807, 5614, 11228, 17921, 35842, 71684, 125447, 250894, 501788, 7186321, 14372642, 28745284, 50304247, 100608494, 201216988]

約数ペア:

[(1, 201216988), (2, 100608494), (4, 50304247), (7, 28745284), (14, 14372642), (28, 7186321), (401, 501788), (802, 250894), (1604, 125447), (2807, 71684), (5614, 35842), (11228, 17921)]