28305018

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{727}}^1$

素因数の和:848

約数の個数: 64

約数和(自身を含む): 72683520

約数和(自身を除く): 44378502

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 103, 126, 189, 206, 309, 378, 618, 721, 727, 927, 1442, 1454, 1854, 2163, 2181, 2781, 4326, 4362, 5089, 5562, 6489, 6543, 10178, 12978, 13086, 15267, 19467, 19629, 30534, 38934, 39258, 45801, 74881, 91602, 137403, 149762, 224643, 274806, 449286, 524167, 673929, 1048334, 1347858, 1572501, 2021787, 3145002, 4043574, 4717503, 9435006, 14152509, 28305018]

約数ペア:

[(1, 28305018), (2, 14152509), (3, 9435006), (6, 4717503), (7, 4043574), (9, 3145002), (14, 2021787), (18, 1572501), (21, 1347858), (27, 1048334), (42, 673929), (54, 524167), (63, 449286), (103, 274806), (126, 224643), (189, 149762), (206, 137403), (309, 91602), (378, 74881), (618, 45801), (721, 39258), (727, 38934), (927, 30534), (1442, 19629), (1454, 19467), (1854, 15267), (2163, 13086), (2181, 12978), (2781, 10178), (4326, 6543), (4362, 6489), (5089, 5562)]