18723303

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{491}}^1$

素因数の和:739

約数の個数: 24

約数和(自身を含む): 28654080

約数和(自身を除く): 9930777

約数列:

[1, 3, 9, 19, 57, 171, 223, 491, 669, 1473, 2007, 4237, 4419, 9329, 12711, 27987, 38133, 83961, 109493, 328479, 985437, 2080367, 6241101, 18723303]

約数ペア:

[(1, 18723303), (3, 6241101), (9, 2080367), (19, 985437), (57, 328479), (171, 109493), (223, 83961), (491, 38133), (669, 27987), (1473, 12711), (2007, 9329), (4237, 4419)]