219345903

素因数分解:

$3^2\times 7^2\times {\mathrm{491}}^1\times {\mathrm{1013}}^1$

素因数の和:1524

約数の個数: 36

約数和(自身を含む): 369676008

約数和(自身を除く): 150330105

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 491, 1013, 1473, 3039, 3437, 4419, 7091, 9117, 10311, 21273, 24059, 30933, 49637, 63819, 72177, 148911, 216531, 446733, 497383, 1492149, 3481681, 4476447, 10445043, 24371767, 31335129, 73115301, 219345903]

約数ペア:

[(1, 219345903), (3, 73115301), (7, 31335129), (9, 24371767), (21, 10445043), (49, 4476447), (63, 3481681), (147, 1492149), (441, 497383), (491, 446733), (1013, 216531), (1473, 148911), (3039, 72177), (3437, 63819), (4419, 49637), (7091, 30933), (9117, 24059), (10311, 21273)]