641856393

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{168599}}^1$

素因数の和:168658

約数の個数: 20

約数和(自身を含む): 979228800

約数和(自身を除く): 337372407

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 168599, 505797, 1517391, 4552173, 7924153, 13656519, 23772459, 71317377, 213952131, 641856393]

約数ペア:

[(1, 641856393), (3, 213952131), (9, 71317377), (27, 23772459), (47, 13656519), (81, 7924153), (141, 4552173), (423, 1517391), (1269, 505797), (3807, 168599)]