18969777

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 28125344

約数和(自身を除く): 9155567

約数列:

[1, 3, 9, 67, 163, 193, 201, 489, 579, 603, 1467, 1737, 10921, 12931, 31459, 32763, 38793, 94377, 98289, 116379, 283131, 2107753, 6323259, 18969777]

約数ペア:

[(1, 18969777), (3, 6323259), (9, 2107753), (67, 283131), (163, 116379), (193, 98289), (201, 94377), (489, 38793), (579, 32763), (603, 31459), (1467, 12931), (1737, 10921)]