28402587

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{1019}}^1$

素因数の和:1207

約数の個数: 24

約数和(自身を含む): 43492800

約数和(自身を除く): 15090213

約数列:

[1, 3, 9, 19, 57, 163, 171, 489, 1019, 1467, 3057, 3097, 9171, 9291, 19361, 27873, 58083, 166097, 174249, 498291, 1494873, 3155843, 9467529, 28402587]

約数ペア:

[(1, 28402587), (3, 9467529), (9, 3155843), (19, 1494873), (57, 498291), (163, 174249), (171, 166097), (489, 58083), (1019, 27873), (1467, 19361), (3057, 9291), (3097, 9171)]