18687171

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 25459200

約数和(自身を除く): 6772029

約数列:

[1, 3, 67, 201, 239, 389, 717, 1167, 16013, 26063, 48039, 78189, 92971, 278913, 6229057, 18687171]

約数ペア:

[(1, 18687171), (3, 6229057), (67, 278913), (201, 92971), (239, 78189), (389, 48039), (717, 26063), (1167, 16013)]