19096515

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 15498045

約数列:

[1, 3, 5, 9, 15, 43, 45, 71, 129, 139, 213, 215, 355, 387, 417, 639, 645, 695, 1065, 1251, 1935, 2085, 3053, 3195, 5977, 6255, 9159, 9869, 15265, 17931, 27477, 29607, 29885, 45795, 49345, 53793, 88821, 89655, 137385, 148035, 268965, 424367, 444105, 1273101, 2121835, 3819303, 6365505, 19096515]

約数ペア:

[(1, 19096515), (3, 6365505), (5, 3819303), (9, 2121835), (15, 1273101), (43, 444105), (45, 424367), (71, 268965), (129, 148035), (139, 137385), (213, 89655), (215, 88821), (355, 53793), (387, 49345), (417, 45795), (639, 29885), (645, 29607), (695, 27477), (1065, 17931), (1251, 15265), (1935, 9869), (2085, 9159), (3053, 6255), (3195, 5977)]