28112511

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{317}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 44448768

約数和(自身を除く): 16336257

約数列:

[1, 3, 7, 21, 41, 103, 123, 287, 309, 317, 721, 861, 951, 2163, 2219, 4223, 6657, 12669, 12997, 29561, 32651, 38991, 88683, 90979, 97953, 228557, 272937, 685671, 1338691, 4016073, 9370837, 28112511]

約数ペア:

[(1, 28112511), (3, 9370837), (7, 4016073), (21, 1338691), (41, 685671), (103, 272937), (123, 228557), (287, 97953), (309, 90979), (317, 88683), (721, 38991), (861, 32651), (951, 29561), (2163, 12997), (2219, 12669), (4223, 6657)]