20004978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1439}}^1$

素因数の和:1782

約数の個数: 32

約数和(自身を含む): 45895680

約数和(自身を除く): 25890702

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 331, 662, 993, 1439, 1986, 2317, 2878, 4317, 4634, 6951, 8634, 10073, 13902, 20146, 30219, 60438, 476309, 952618, 1428927, 2857854, 3334163, 6668326, 10002489, 20004978]

約数ペア:

[(1, 20004978), (2, 10002489), (3, 6668326), (6, 3334163), (7, 2857854), (14, 1428927), (21, 952618), (42, 476309), (331, 60438), (662, 30219), (993, 20146), (1439, 13902), (1986, 10073), (2317, 8634), (2878, 6951), (4317, 4634)]