21662410

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4019}}^1$

素因数の和:4051

約数の個数: 48

約数和(自身を含む): 49494240

約数和(自身を除く): 27831830

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 4019, 5390, 8038, 20095, 28133, 40190, 44209, 56266, 88418, 140665, 196931, 221045, 281330, 309463, 393862, 442090, 618926, 984655, 1547315, 1969310, 2166241, 3094630, 4332482, 10831205, 21662410]

約数ペア:

[(1, 21662410), (2, 10831205), (5, 4332482), (7, 3094630), (10, 2166241), (11, 1969310), (14, 1547315), (22, 984655), (35, 618926), (49, 442090), (55, 393862), (70, 309463), (77, 281330), (98, 221045), (110, 196931), (154, 140665), (245, 88418), (385, 56266), (490, 44209), (539, 40190), (770, 28133), (1078, 20095), (2695, 8038), (4019, 5390)]