87716421

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 141261120

約数和(自身を除く): 53544699

約数列:

[1, 3, 9, 13, 39, 59, 97, 117, 131, 177, 291, 393, 531, 767, 873, 1179, 1261, 1703, 2301, 3783, 5109, 5723, 6903, 7729, 11349, 12707, 15327, 17169, 23187, 38121, 51507, 69561, 74399, 100477, 114363, 165191, 223197, 301431, 495573, 669591, 749713, 904293, 1486719, 2249139, 6747417, 9746269, 29238807, 87716421]

約数ペア:

[(1, 87716421), (3, 29238807), (9, 9746269), (13, 6747417), (39, 2249139), (59, 1486719), (97, 904293), (117, 749713), (131, 669591), (177, 495573), (291, 301431), (393, 223197), (531, 165191), (767, 114363), (873, 100477), (1179, 74399), (1261, 69561), (1703, 51507), (2301, 38121), (3783, 23187), (5109, 17169), (5723, 15327), (6903, 12707), (7729, 11349)]