128156973

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{9491}}^1$

素因数の和:10144

約数の個数: 16

約数和(自身を含む): 195611136

約数和(自身を除く): 67454163

約数列:

[1, 3, 7, 21, 643, 1929, 4501, 9491, 13503, 28473, 66437, 199311, 6102713, 18308139, 42718991, 128156973]

約数ペア:

[(1, 128156973), (3, 42718991), (7, 18308139), (21, 6102713), (643, 199311), (1929, 66437), (4501, 28473), (9491, 13503)]