20016906

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{601}}^1$

素因数の和:687

約数の個数: 64

約数和(自身を含む): 50163456

約数和(自身を除く): 30146550

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 61, 78, 91, 122, 182, 183, 273, 366, 427, 546, 601, 793, 854, 1202, 1281, 1586, 1803, 2379, 2562, 3606, 4207, 4758, 5551, 7813, 8414, 11102, 12621, 15626, 16653, 23439, 25242, 33306, 36661, 46878, 54691, 73322, 109382, 109983, 164073, 219966, 256627, 328146, 476593, 513254, 769881, 953186, 1429779, 1539762, 2859558, 3336151, 6672302, 10008453, 20016906]

約数ペア:

[(1, 20016906), (2, 10008453), (3, 6672302), (6, 3336151), (7, 2859558), (13, 1539762), (14, 1429779), (21, 953186), (26, 769881), (39, 513254), (42, 476593), (61, 328146), (78, 256627), (91, 219966), (122, 164073), (182, 109983), (183, 109382), (273, 73322), (366, 54691), (427, 46878), (546, 36661), (601, 33306), (793, 25242), (854, 23439), (1202, 16653), (1281, 15626), (1586, 12621), (1803, 11102), (2379, 8414), (2562, 7813), (3606, 5551), (4207, 4758)]