9902781

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8273}}^1$

素因数の和:8305

約数の個数: 24

約数和(自身を含む): 17209920

約数和(自身を除く): 7307139

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 8273, 24819, 57911, 74457, 157187, 173733, 471561, 521199, 1100309, 1414683, 3300927, 9902781]

約数ペア:

[(1, 9902781), (3, 3300927), (7, 1414683), (9, 1100309), (19, 521199), (21, 471561), (57, 173733), (63, 157187), (133, 74457), (171, 57911), (399, 24819), (1197, 8273)]