238291221

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{2687}}^1$

素因数の和:2841

約数の個数: 32

約数和(自身を含む): 375717888

約数和(自身を除く): 137426667

約数列:

[1, 3, 7, 21, 41, 103, 123, 287, 309, 721, 861, 2163, 2687, 4223, 8061, 12669, 18809, 29561, 56427, 88683, 110167, 276761, 330501, 771169, 830283, 1937327, 2313507, 5811981, 11347201, 34041603, 79430407, 238291221]

約数ペア:

[(1, 238291221), (3, 79430407), (7, 34041603), (21, 11347201), (41, 5811981), (103, 2313507), (123, 1937327), (287, 830283), (309, 771169), (721, 330501), (861, 276761), (2163, 110167), (2687, 88683), (4223, 56427), (8061, 29561), (12669, 18809)]