28076517

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{997}}^1$

素因数の和:1162

約数の個数: 32

約数和(自身を含む): 47904000

約数和(自身を除く): 19827483

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 447, 997, 1043, 1341, 2991, 3129, 4023, 6979, 8973, 9387, 20937, 26919, 28161, 62811, 148553, 188433, 445659, 1039871, 1336977, 3119613, 4010931, 9358839, 28076517]

約数ペア:

[(1, 28076517), (3, 9358839), (7, 4010931), (9, 3119613), (21, 1336977), (27, 1039871), (63, 445659), (149, 188433), (189, 148553), (447, 62811), (997, 28161), (1043, 26919), (1341, 20937), (2991, 9387), (3129, 8973), (4023, 6979)]