19946612

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{659}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 22631308

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 47, 92, 94, 161, 188, 322, 329, 644, 658, 659, 1081, 1316, 1318, 2162, 2636, 4324, 4613, 7567, 9226, 15134, 15157, 18452, 30268, 30314, 30973, 60628, 61946, 106099, 123892, 212198, 216811, 424396, 433622, 712379, 867244, 1424758, 2849516, 4986653, 9973306, 19946612]

約数ペア:

[(1, 19946612), (2, 9973306), (4, 4986653), (7, 2849516), (14, 1424758), (23, 867244), (28, 712379), (46, 433622), (47, 424396), (92, 216811), (94, 212198), (161, 123892), (188, 106099), (322, 61946), (329, 60628), (644, 30973), (658, 30314), (659, 30268), (1081, 18452), (1316, 15157), (1318, 15134), (2162, 9226), (2636, 7567), (4324, 4613)]