21000299028

素因数分解:

$2^2\times 3^1\times {\mathrm{151}}^1\times {\mathrm{2399}}^1\times {\mathrm{4831}}^1$

素因数の和:7388

約数の個数: 48

約数和(自身を含む): 49355980800

約数和(自身を除く): 28355681772

約数列:

[1, 2, 3, 4, 6, 12, 151, 302, 453, 604, 906, 1812, 2399, 4798, 4831, 7197, 9596, 9662, 14394, 14493, 19324, 28788, 28986, 57972, 362249, 724498, 729481, 1086747, 1448996, 1458962, 2173494, 2188443, 2917924, 4346988, 4376886, 8753772, 11589569, 23179138, 34768707, 46358276, 69537414, 139074828, 1750024919, 3500049838, 5250074757, 7000099676, 10500149514, 21000299028]

約数ペア:

[(1, 21000299028), (2, 10500149514), (3, 7000099676), (4, 5250074757), (6, 3500049838), (12, 1750024919), (151, 139074828), (302, 69537414), (453, 46358276), (604, 34768707), (906, 23179138), (1812, 11589569), (2399, 8753772), (4798, 4376886), (4831, 4346988), (7197, 2917924), (9596, 2188443), (9662, 2173494), (14394, 1458962), (14493, 1448996), (19324, 1086747), (28788, 729481), (28986, 724498), (57972, 362249)]