31940919

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:189

約数の個数: 48

約数和(自身を含む): 52120800

約数和(自身を除く): 20179881

約数列:

[1, 3, 9, 19, 27, 29, 57, 87, 113, 171, 261, 339, 361, 513, 551, 783, 1017, 1083, 1653, 2147, 3051, 3249, 3277, 4959, 6441, 9747, 9831, 10469, 14877, 19323, 29493, 31407, 40793, 57969, 62263, 88479, 94221, 122379, 186789, 282663, 367137, 560367, 1101411, 1182997, 1681101, 3548991, 10646973, 31940919]

約数ペア:

[(1, 31940919), (3, 10646973), (9, 3548991), (19, 1681101), (27, 1182997), (29, 1101411), (57, 560367), (87, 367137), (113, 282663), (171, 186789), (261, 122379), (339, 94221), (361, 88479), (513, 62263), (551, 57969), (783, 40793), (1017, 31407), (1083, 29493), (1653, 19323), (2147, 14877), (3051, 10469), (3249, 9831), (3277, 9747), (4959, 6441)]