21765042

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1979}}^1$

素因数の和:2047

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 30126798

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 78, 94, 117, 141, 234, 282, 423, 611, 846, 1222, 1833, 1979, 3666, 3958, 5499, 5937, 10998, 11874, 17811, 25727, 35622, 51454, 77181, 93013, 154362, 186026, 231543, 279039, 463086, 558078, 837117, 1209169, 1674234, 2418338, 3627507, 7255014, 10882521, 21765042]

約数ペア:

[(1, 21765042), (2, 10882521), (3, 7255014), (6, 3627507), (9, 2418338), (13, 1674234), (18, 1209169), (26, 837117), (39, 558078), (47, 463086), (78, 279039), (94, 231543), (117, 186026), (141, 154362), (234, 93013), (282, 77181), (423, 51454), (611, 35622), (846, 25727), (1222, 17811), (1833, 11874), (1979, 10998), (3666, 5937), (3958, 5499)]