21227199

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53201}}^1$

素因数の和:53230

約数の個数: 16

約数和(自身を含む): 34049280

約数和(自身を除く): 12822081

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 53201, 159603, 372407, 1010819, 1117221, 3032457, 7075733, 21227199]

約数ペア:

[(1, 21227199), (3, 7075733), (7, 3032457), (19, 1117221), (21, 1010819), (57, 372407), (133, 159603), (399, 53201)]