21553467

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 14734533

約数列:

[1, 3, 13, 17, 19, 29, 39, 51, 57, 59, 87, 177, 221, 247, 323, 377, 493, 551, 663, 741, 767, 969, 1003, 1121, 1131, 1479, 1653, 1711, 2301, 3009, 3363, 4199, 5133, 6409, 7163, 9367, 12597, 13039, 14573, 19057, 19227, 21489, 22243, 28101, 29087, 32509, 39117, 43719, 57171, 66729, 87261, 97527, 121771, 247741, 365313, 378131, 422617, 552653, 743223, 1134393, 1267851, 1657959, 7184489, 21553467]

約数ペア:

[(1, 21553467), (3, 7184489), (13, 1657959), (17, 1267851), (19, 1134393), (29, 743223), (39, 552653), (51, 422617), (57, 378131), (59, 365313), (87, 247741), (177, 121771), (221, 97527), (247, 87261), (323, 66729), (377, 57171), (493, 43719), (551, 39117), (663, 32509), (741, 29087), (767, 28101), (969, 22243), (1003, 21489), (1121, 19227), (1131, 19057), (1479, 14573), (1653, 13039), (1711, 12597), (2301, 9367), (3009, 7163), (3363, 6409), (4199, 5133)]