639027

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:163

約数の個数: 24

約数和(自身を含む): 1007760

約数和(自身を除く): 368733

約数列:

[1, 3, 9, 19, 37, 57, 101, 111, 171, 303, 333, 703, 909, 1919, 2109, 3737, 5757, 6327, 11211, 17271, 33633, 71003, 213009, 639027]

約数ペア:

[(1, 639027), (3, 213009), (9, 71003), (19, 33633), (37, 17271), (57, 11211), (101, 6327), (111, 5757), (171, 3737), (303, 2109), (333, 1919), (703, 909)]