19517445

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{823}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 37020672

約数和(自身を除く): 17503227

約数列:

[1, 3, 5, 9, 15, 17, 31, 45, 51, 85, 93, 153, 155, 255, 279, 465, 527, 765, 823, 1395, 1581, 2469, 2635, 4115, 4743, 7407, 7905, 12345, 13991, 23715, 25513, 37035, 41973, 69955, 76539, 125919, 127565, 209865, 229617, 382695, 433721, 629595, 1148085, 1301163, 2168605, 3903489, 6505815, 19517445]

約数ペア:

[(1, 19517445), (3, 6505815), (5, 3903489), (9, 2168605), (15, 1301163), (17, 1148085), (31, 629595), (45, 433721), (51, 382695), (85, 229617), (93, 209865), (153, 127565), (155, 125919), (255, 76539), (279, 69955), (465, 41973), (527, 37035), (765, 25513), (823, 23715), (1395, 13991), (1581, 12345), (2469, 7905), (2635, 7407), (4115, 4743)]