201538404417

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{505108783}}^1$

素因数の和:505108812

約数の個数: 16

約数和(自身を含む): 323269621760

約数和(自身を除く): 121731217343

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 505108783, 1515326349, 3535761481, 9597066877, 10607284443, 28791200631, 67179468139, 201538404417]

約数ペア:

[(1, 201538404417), (3, 67179468139), (7, 28791200631), (19, 10607284443), (21, 9597066877), (57, 3535761481), (133, 1515326349), (399, 505108783)]