215681907

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{4001}}^1$

素因数の和:4179

約数の個数: 32

約数和(自身を含む): 350383104

約数和(自身を除く): 134701197

約数列:

[1, 3, 7, 17, 21, 51, 119, 151, 357, 453, 1057, 2567, 3171, 4001, 7701, 12003, 17969, 28007, 53907, 68017, 84021, 204051, 476119, 604151, 1428357, 1812453, 4229057, 10270567, 12687171, 30811701, 71893969, 215681907]

約数ペア:

[(1, 215681907), (3, 71893969), (7, 30811701), (17, 12687171), (21, 10270567), (51, 4229057), (119, 1812453), (151, 1428357), (357, 604151), (453, 476119), (1057, 204051), (2567, 84021), (3171, 68017), (4001, 53907), (7701, 28007), (12003, 17969)]