21040353

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1733}}^1$

素因数の和:1829

約数の個数: 24

約数和(自身を含む): 32460480

約数和(自身を除く): 11420127

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 1733, 4047, 5199, 12141, 15597, 32927, 98781, 123043, 296343, 369129, 1107387, 2337817, 7013451, 21040353]

約数ペア:

[(1, 21040353), (3, 7013451), (9, 2337817), (19, 1107387), (57, 369129), (71, 296343), (171, 123043), (213, 98781), (639, 32927), (1349, 15597), (1733, 12141), (4047, 5199)]