219406913

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{367}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 267079680

約数和(自身を除く): 47672767

約数列:

[1, 11, 17, 23, 139, 187, 253, 367, 391, 1529, 2363, 3197, 4037, 4301, 6239, 8441, 25993, 35167, 51013, 54349, 68629, 92851, 143497, 561143, 597839, 867221, 1173299, 1578467, 9539431, 12906289, 19946083, 219406913]

約数ペア:

[(1, 219406913), (11, 19946083), (17, 12906289), (23, 9539431), (139, 1578467), (187, 1173299), (253, 867221), (367, 597839), (391, 561143), (1529, 143497), (2363, 92851), (3197, 68629), (4037, 54349), (4301, 51013), (6239, 35167), (8441, 25993)]