21234717

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2203}}^1$

素因数の和:2239

約数の個数: 40

約数和(自身を含む): 38402496

約数和(自身を除く): 17167779

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 357, 459, 567, 1071, 1377, 2203, 3213, 6609, 9639, 15421, 19827, 37451, 46263, 59481, 112353, 138789, 178443, 262157, 337059, 416367, 786471, 1011177, 1249101, 2359413, 3033531, 7078239, 21234717]

約数ペア:

[(1, 21234717), (3, 7078239), (7, 3033531), (9, 2359413), (17, 1249101), (21, 1011177), (27, 786471), (51, 416367), (63, 337059), (81, 262157), (119, 178443), (153, 138789), (189, 112353), (357, 59481), (459, 46263), (567, 37451), (1071, 19827), (1377, 15421), (2203, 9639), (3213, 6609)]