20781646215

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{701}}^1\times {\mathrm{179671}}^1$

素因数の和:180391

約数の個数: 32

約数和(自身を含む): 36325366272

約数和(自身を除く): 15543720057

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 701, 2103, 3505, 7711, 10515, 23133, 38555, 115665, 179671, 539013, 898355, 1976381, 2695065, 5929143, 9881905, 29645715, 125949371, 377848113, 629746855, 1385443081, 1889240565, 4156329243, 6927215405, 20781646215]

約数ペア:

[(1, 20781646215), (3, 6927215405), (5, 4156329243), (11, 1889240565), (15, 1385443081), (33, 629746855), (55, 377848113), (165, 125949371), (701, 29645715), (2103, 9881905), (3505, 5929143), (7711, 2695065), (10515, 1976381), (23133, 898355), (38555, 539013), (115665, 179671)]