21193669456

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{8126407}}^1$

素因数の和:8126578

約数の個数: 20

約数和(自身を含む): 41314658272

約数和(自身を除く): 20120988816

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 8126407, 16252814, 32505628, 65011256, 130022512, 1324604341, 2649208682, 5298417364, 10596834728, 21193669456]

約数ペア:

[(1, 21193669456), (2, 10596834728), (4, 5298417364), (8, 2649208682), (16, 1324604341), (163, 130022512), (326, 65011256), (652, 32505628), (1304, 16252814), (2608, 8126407)]