28947429

素因数分解:

$3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1487}}^1$

素因数の和:1606

約数の個数: 32

約数和(自身を含む): 49520640

約数和(自身を除く): 20573211

約数列:

[1, 3, 7, 9, 21, 27, 63, 103, 189, 309, 721, 927, 1487, 2163, 2781, 4461, 6489, 10409, 13383, 19467, 31227, 40149, 93681, 153161, 281043, 459483, 1072127, 1378449, 3216381, 4135347, 9649143, 28947429]

約数ペア:

[(1, 28947429), (3, 9649143), (7, 4135347), (9, 3216381), (21, 1378449), (27, 1072127), (63, 459483), (103, 281043), (189, 153161), (309, 93681), (721, 40149), (927, 31227), (1487, 19467), (2163, 13383), (2781, 10409), (4461, 6489)]