18878445

素因数分解:

$3^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{947}}^1$

素因数の和:1401

約数の個数: 24

約数和(自身を含む): 32831136

約数和(自身を除く): 13952691

約数列:

[1, 3, 5, 9, 15, 45, 443, 947, 1329, 2215, 2841, 3987, 4735, 6645, 8523, 14205, 19935, 42615, 419521, 1258563, 2097605, 3775689, 6292815, 18878445]

約数ペア:

[(1, 18878445), (3, 6292815), (5, 3775689), (9, 2097605), (15, 1258563), (45, 419521), (443, 42615), (947, 19935), (1329, 14205), (2215, 8523), (2841, 6645), (3987, 4735)]