20958491895

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2053}}^1\times {\mathrm{61871}}^1$

素因数の和:63943

約数の個数: 32

約数和(自身を含む): 36600505344

約数和(自身を除く): 15642013449

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 2053, 6159, 10265, 22583, 30795, 61871, 67749, 112915, 185613, 309355, 338745, 680581, 928065, 2041743, 3402905, 10208715, 127021163, 381063489, 635105815, 1397232793, 1905317445, 4191698379, 6986163965, 20958491895]

約数ペア:

[(1, 20958491895), (3, 6986163965), (5, 4191698379), (11, 1905317445), (15, 1397232793), (33, 635105815), (55, 381063489), (165, 127021163), (2053, 10208715), (6159, 3402905), (10265, 2041743), (22583, 928065), (30795, 680581), (61871, 338745), (67749, 309355), (112915, 185613)]