128971815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{1228303}}^1$

素因数の和:1228318

約数の個数: 16

約数和(自身を含む): 235834368

約数和(自身を除く): 106862553

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 1228303, 3684909, 6141515, 8598121, 18424545, 25794363, 42990605, 128971815]

約数ペア:

[(1, 128971815), (3, 42990605), (5, 25794363), (7, 18424545), (15, 8598121), (21, 6141515), (35, 3684909), (105, 1228303)]