15805881

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{919}}^1$

素因数の和:955

約数の個数: 48

約数和(自身を含む): 29366400

約数和(自身を除く): 13560519

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 91, 117, 147, 189, 273, 351, 441, 637, 819, 919, 1323, 1911, 2457, 2757, 5733, 6433, 8271, 11947, 17199, 19299, 24813, 35841, 45031, 57897, 83629, 107523, 135093, 173691, 250887, 322569, 405279, 585403, 752661, 1215837, 1756209, 2257983, 5268627, 15805881]

約数ペア:

[(1, 15805881), (3, 5268627), (7, 2257983), (9, 1756209), (13, 1215837), (21, 752661), (27, 585403), (39, 405279), (49, 322569), (63, 250887), (91, 173691), (117, 135093), (147, 107523), (189, 83629), (273, 57897), (351, 45031), (441, 35841), (637, 24813), (819, 19299), (919, 17199), (1323, 11947), (1911, 8271), (2457, 6433), (2757, 5733)]