19691658

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1193}}^1$

素因数の和:1339

約数の個数: 48

約数和(自身を含む): 49173696

約数和(自身を除く): 29482038

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 131, 262, 393, 786, 917, 1179, 1193, 1834, 2358, 2386, 2751, 3579, 5502, 7158, 8253, 8351, 10737, 16506, 16702, 21474, 25053, 50106, 75159, 150318, 156283, 312566, 468849, 937698, 1093981, 1406547, 2187962, 2813094, 3281943, 6563886, 9845829, 19691658]

約数ペア:

[(1, 19691658), (2, 9845829), (3, 6563886), (6, 3281943), (7, 2813094), (9, 2187962), (14, 1406547), (18, 1093981), (21, 937698), (42, 468849), (63, 312566), (126, 156283), (131, 150318), (262, 75159), (393, 50106), (786, 25053), (917, 21474), (1179, 16702), (1193, 16506), (1834, 10737), (2358, 8351), (2386, 8253), (2751, 7158), (3579, 5502)]