21967029

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4201}}^1$

素因数の和:4297

約数の個数: 24

約数和(自身を含む): 36708672

約数和(自身を除く): 14741643

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 4201, 5229, 12603, 29407, 37809, 88221, 264663, 348683, 1046049, 2440781, 3138147, 7322343, 21967029]

約数ペア:

[(1, 21967029), (3, 7322343), (7, 3138147), (9, 2440781), (21, 1046049), (63, 348683), (83, 264663), (249, 88221), (581, 37809), (747, 29407), (1743, 12603), (4201, 5229)]