21520352

素因数分解:

$2^5\times 7^1\times {\mathrm{191}}^1\times {\mathrm{503}}^1$

素因数の和:711

約数の個数: 48

約数和(自身を含む): 48771072

約数和(自身を除く): 27250720

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 191, 224, 382, 503, 764, 1006, 1337, 1528, 2012, 2674, 3056, 3521, 4024, 5348, 6112, 7042, 8048, 10696, 14084, 16096, 21392, 28168, 42784, 56336, 96073, 112672, 192146, 384292, 672511, 768584, 1345022, 1537168, 2690044, 3074336, 5380088, 10760176, 21520352]

約数ペア:

[(1, 21520352), (2, 10760176), (4, 5380088), (7, 3074336), (8, 2690044), (14, 1537168), (16, 1345022), (28, 768584), (32, 672511), (56, 384292), (112, 192146), (191, 112672), (224, 96073), (382, 56336), (503, 42784), (764, 28168), (1006, 21392), (1337, 16096), (1528, 14084), (2012, 10696), (2674, 8048), (3056, 7042), (3521, 6112), (4024, 5348)]