20614659

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 33008640

約数和(自身を除く): 12393981

約数列:

[1, 3, 13, 17, 31, 39, 51, 59, 93, 177, 221, 289, 403, 527, 663, 767, 867, 1003, 1209, 1581, 1829, 2301, 3009, 3757, 5487, 6851, 8959, 11271, 13039, 17051, 20553, 23777, 26877, 31093, 39117, 51153, 71331, 93279, 116467, 221663, 349401, 404209, 528581, 664989, 1212627, 1585743, 6871553, 20614659]

約数ペア:

[(1, 20614659), (3, 6871553), (13, 1585743), (17, 1212627), (31, 664989), (39, 528581), (51, 404209), (59, 349401), (93, 221663), (177, 116467), (221, 93279), (289, 71331), (403, 51153), (527, 39117), (663, 31093), (767, 26877), (867, 23777), (1003, 20553), (1209, 17051), (1581, 13039), (1829, 11271), (2301, 8959), (3009, 6851), (3757, 5487)]