21036054

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{197}}^1$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 46802448

約数和(自身を除く): 25766394

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 197, 222, 394, 481, 591, 962, 1182, 1369, 1443, 2561, 2738, 2886, 4107, 5122, 7289, 7683, 8214, 14578, 15366, 17797, 21867, 35594, 43734, 53391, 94757, 106782, 189514, 269693, 284271, 539386, 568542, 809079, 1618158, 3506009, 7012018, 10518027, 21036054]

約数ペア:

[(1, 21036054), (2, 10518027), (3, 7012018), (6, 3506009), (13, 1618158), (26, 809079), (37, 568542), (39, 539386), (74, 284271), (78, 269693), (111, 189514), (197, 106782), (222, 94757), (394, 53391), (481, 43734), (591, 35594), (962, 21867), (1182, 17797), (1369, 15366), (1443, 14578), (2561, 8214), (2738, 7683), (2886, 7289), (4107, 5122)]