20781614

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{31583}}^1$

素因数の和:31639

約数の個数: 16

約数和(自身を含む): 36384768

約数和(自身を除く): 15603154

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 31583, 63166, 221081, 442162, 1484401, 2968802, 10390807, 20781614]

約数ペア:

[(1, 20781614), (2, 10390807), (7, 2968802), (14, 1484401), (47, 442162), (94, 221081), (329, 63166), (658, 31583)]