21454538

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{66629}}^1$

素因数の和:66661

約数の個数: 16

約数和(自身を含む): 38378880

約数和(自身を除く): 16924342

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 66629, 133258, 466403, 932806, 1532467, 3064934, 10727269, 21454538]

約数ペア:

[(1, 21454538), (2, 10727269), (7, 3064934), (14, 1532467), (23, 932806), (46, 466403), (161, 133258), (322, 66629)]