20663223

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{239}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 12514377

約数列:

[1, 3, 7, 21, 23, 69, 161, 179, 239, 483, 537, 717, 1253, 1673, 3759, 4117, 5019, 5497, 12351, 16491, 28819, 38479, 42781, 86457, 115437, 128343, 299467, 898401, 983963, 2951889, 6887741, 20663223]

約数ペア:

[(1, 20663223), (3, 6887741), (7, 2951889), (21, 983963), (23, 898401), (69, 299467), (161, 128343), (179, 115437), (239, 86457), (483, 42781), (537, 38479), (717, 28819), (1253, 16491), (1673, 12351), (3759, 5497), (4117, 5019)]