204028215

素因数分解:

$3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{21023}}^1$

素因数の和:21678

約数の個数: 16

約数和(自身を含む): 326965248

約数和(自身を除く): 122937033

約数列:

[1, 3, 5, 15, 647, 1941, 3235, 9705, 21023, 63069, 105115, 315345, 13601881, 40805643, 68009405, 204028215]

約数ペア:

[(1, 204028215), (3, 68009405), (5, 40805643), (15, 13601881), (647, 315345), (1941, 105115), (3235, 63069), (9705, 21023)]