28758951

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 49926240

約数和(自身を除く): 21167289

約数列:

[1, 3, 9, 13, 17, 19, 39, 51, 57, 117, 153, 171, 221, 247, 323, 663, 741, 761, 969, 1989, 2223, 2283, 2907, 4199, 6849, 9893, 12597, 12937, 14459, 29679, 37791, 38811, 43377, 89037, 116433, 130131, 168181, 187967, 245803, 504543, 563901, 737409, 1513629, 1691703, 2212227, 3195439, 9586317, 28758951]

約数ペア:

[(1, 28758951), (3, 9586317), (9, 3195439), (13, 2212227), (17, 1691703), (19, 1513629), (39, 737409), (51, 563901), (57, 504543), (117, 245803), (153, 187967), (171, 168181), (221, 130131), (247, 116433), (323, 89037), (663, 43377), (741, 38811), (761, 37791), (969, 29679), (1989, 14459), (2223, 12937), (2283, 12597), (2907, 9893), (4199, 6849)]