20910615

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 37806048

約数和(自身を除く): 16895433

約数列:

[1, 3, 5, 11, 15, 33, 41, 55, 121, 123, 165, 205, 281, 363, 451, 605, 615, 843, 1353, 1405, 1815, 2255, 3091, 4215, 4961, 6765, 9273, 11521, 14883, 15455, 24805, 34001, 34563, 46365, 57605, 74415, 102003, 126731, 170005, 172815, 380193, 510015, 633655, 1394041, 1900965, 4182123, 6970205, 20910615]

約数ペア:

[(1, 20910615), (3, 6970205), (5, 4182123), (11, 1900965), (15, 1394041), (33, 633655), (41, 510015), (55, 380193), (121, 172815), (123, 170005), (165, 126731), (205, 102003), (281, 74415), (363, 57605), (451, 46365), (605, 34563), (615, 34001), (843, 24805), (1353, 15455), (1405, 14883), (1815, 11521), (2255, 9273), (3091, 6765), (4215, 4961)]