21244293

素因数分解:

$3^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{719}}^1$

素因数の和:806

約数の個数: 36

約数和(自身を含む): 36279360

約数和(自身を除く): 15035067

約数列:

[1, 3, 7, 9, 21, 49, 63, 67, 147, 201, 441, 469, 603, 719, 1407, 2157, 3283, 4221, 5033, 6471, 9849, 15099, 29547, 35231, 45297, 48173, 105693, 144519, 317079, 337211, 433557, 1011633, 2360477, 3034899, 7081431, 21244293]

約数ペア:

[(1, 21244293), (3, 7081431), (7, 3034899), (9, 2360477), (21, 1011633), (49, 433557), (63, 337211), (67, 317079), (147, 144519), (201, 105693), (441, 48173), (469, 45297), (603, 35231), (719, 29547), (1407, 15099), (2157, 9849), (3283, 6471), (4221, 5033)]