18680445

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1913}}^1$

素因数の和:1962

約数の個数: 48

約数和(自身を含む): 38218752

約数和(自身を除く): 19538307

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1913, 1953, 3255, 5739, 9565, 9765, 13391, 17217, 28695, 40173, 59303, 66955, 86085, 120519, 177909, 200865, 296515, 415121, 533727, 602595, 889545, 1245363, 2075605, 2668635, 3736089, 6226815, 18680445]

約数ペア:

[(1, 18680445), (3, 6226815), (5, 3736089), (7, 2668635), (9, 2075605), (15, 1245363), (21, 889545), (31, 602595), (35, 533727), (45, 415121), (63, 296515), (93, 200865), (105, 177909), (155, 120519), (217, 86085), (279, 66955), (315, 59303), (465, 40173), (651, 28695), (1085, 17217), (1395, 13391), (1913, 9765), (1953, 9565), (3255, 5739)]