20434557

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 35481600

約数和(自身を除く): 15047043

約数列:

[1, 3, 11, 13, 19, 23, 33, 39, 57, 69, 109, 143, 209, 247, 253, 299, 327, 429, 437, 627, 741, 759, 897, 1199, 1311, 1417, 2071, 2507, 2717, 3289, 3597, 4251, 4807, 5681, 6213, 7521, 8151, 9867, 14421, 15587, 17043, 22781, 26923, 27577, 32591, 46761, 47633, 62491, 68343, 80769, 82731, 97773, 142899, 187473, 296153, 358501, 523963, 619229, 888459, 1075503, 1571889, 1857687, 6811519, 20434557]

約数ペア:

[(1, 20434557), (3, 6811519), (11, 1857687), (13, 1571889), (19, 1075503), (23, 888459), (33, 619229), (39, 523963), (57, 358501), (69, 296153), (109, 187473), (143, 142899), (209, 97773), (247, 82731), (253, 80769), (299, 68343), (327, 62491), (429, 47633), (437, 46761), (627, 32591), (741, 27577), (759, 26923), (897, 22781), (1199, 17043), (1311, 15587), (1417, 14421), (2071, 9867), (2507, 8151), (2717, 7521), (3289, 6213), (3597, 5681), (4251, 4807)]