20493645

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{709}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 34352640

約数和(自身を除く): 13858995

約数列:

[1, 3, 5, 15, 41, 47, 123, 141, 205, 235, 615, 705, 709, 1927, 2127, 3545, 5781, 9635, 10635, 28905, 29069, 33323, 87207, 99969, 145345, 166615, 436035, 499845, 1366243, 4098729, 6831215, 20493645]

約数ペア:

[(1, 20493645), (3, 6831215), (5, 4098729), (15, 1366243), (41, 499845), (47, 436035), (123, 166615), (141, 145345), (205, 99969), (235, 87207), (615, 33323), (705, 29069), (709, 28905), (1927, 10635), (2127, 9635), (3545, 5781)]