402857

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:272

約数の個数: 16

約数和(自身を含む): 524160

約数和(自身を除く): 121303

約数列:

[1, 7, 13, 19, 91, 133, 233, 247, 1631, 1729, 3029, 4427, 21203, 30989, 57551, 402857]

約数ペア:

[(1, 402857), (7, 57551), (13, 30989), (19, 21203), (91, 4427), (133, 3029), (233, 1729), (247, 1631)]