21000688270

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{421}}^1\times {\mathrm{22369}}^1$

素因数の和:23020

約数の個数: 32

約数和(自身を含む): 38062644480

約数和(自身を除く): 17061956210

約数列:

[1, 2, 5, 10, 223, 421, 446, 842, 1115, 2105, 2230, 4210, 22369, 44738, 93883, 111845, 187766, 223690, 469415, 938830, 4988287, 9417349, 9976574, 18834698, 24941435, 47086745, 49882870, 94173490, 2100068827, 4200137654, 10500344135, 21000688270]

約数ペア:

[(1, 21000688270), (2, 10500344135), (5, 4200137654), (10, 2100068827), (223, 94173490), (421, 49882870), (446, 47086745), (842, 24941435), (1115, 18834698), (2105, 9976574), (2230, 9417349), (4210, 4988287), (22369, 938830), (44738, 469415), (93883, 223690), (111845, 187766)]