21578278

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{1601}}^1$

素因数の和:1919

約数の個数: 16

約数和(自身を含む): 33911136

約数和(自身を除く): 12332858

約数列:

[1, 2, 23, 46, 293, 586, 1601, 3202, 6739, 13478, 36823, 73646, 469093, 938186, 10789139, 21578278]

約数ペア:

[(1, 21578278), (2, 10789139), (23, 938186), (46, 469093), (293, 73646), (586, 36823), (1601, 13478), (3202, 6739)]