21009672

素因数分解:

$2^3\times 3^3\times {\mathrm{23}}^1\times {\mathrm{4229}}^1$

素因数の和:4267

約数の個数: 64

約数和(自身を含む): 60912000

約数和(自身を除く): 39902328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 36, 46, 54, 69, 72, 92, 108, 138, 184, 207, 216, 276, 414, 552, 621, 828, 1242, 1656, 2484, 4229, 4968, 8458, 12687, 16916, 25374, 33832, 38061, 50748, 76122, 97267, 101496, 114183, 152244, 194534, 228366, 291801, 304488, 389068, 456732, 583602, 778136, 875403, 913464, 1167204, 1750806, 2334408, 2626209, 3501612, 5252418, 7003224, 10504836, 21009672]

約数ペア:

[(1, 21009672), (2, 10504836), (3, 7003224), (4, 5252418), (6, 3501612), (8, 2626209), (9, 2334408), (12, 1750806), (18, 1167204), (23, 913464), (24, 875403), (27, 778136), (36, 583602), (46, 456732), (54, 389068), (69, 304488), (72, 291801), (92, 228366), (108, 194534), (138, 152244), (184, 114183), (207, 101496), (216, 97267), (276, 76122), (414, 50748), (552, 38061), (621, 33832), (828, 25374), (1242, 16916), (1656, 12687), (2484, 8458), (4229, 4968)]