28477335

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 47900160

約数和(自身を除く): 19422825

約数列:

[1, 3, 5, 15, 23, 69, 115, 197, 345, 419, 591, 985, 1257, 2095, 2955, 4531, 6285, 9637, 13593, 22655, 28911, 48185, 67965, 82543, 144555, 247629, 412715, 1238145, 1898489, 5695467, 9492445, 28477335]

約数ペア:

[(1, 28477335), (3, 9492445), (5, 5695467), (15, 1898489), (23, 1238145), (69, 412715), (115, 247629), (197, 144555), (345, 82543), (419, 67965), (591, 48185), (985, 28911), (1257, 22655), (2095, 13593), (2955, 9637), (4531, 6285)]