217888947

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{359}}^1$

素因数の和:557

約数の個数: 40

約数和(自身を含む): 334540800

約数和(自身を除く): 116651853

約数列:

[1, 3, 9, 27, 59, 81, 127, 177, 359, 381, 531, 1077, 1143, 1593, 3231, 3429, 4779, 7493, 9693, 10287, 21181, 22479, 29079, 45593, 63543, 67437, 136779, 190629, 202311, 410337, 571887, 606933, 1231011, 1715661, 2689987, 3693033, 8069961, 24209883, 72629649, 217888947]

約数ペア:

[(1, 217888947), (3, 72629649), (9, 24209883), (27, 8069961), (59, 3693033), (81, 2689987), (127, 1715661), (177, 1231011), (359, 606933), (381, 571887), (531, 410337), (1077, 202311), (1143, 190629), (1593, 136779), (3231, 67437), (3429, 63543), (4779, 45593), (7493, 29079), (9693, 22479), (10287, 21181)]