21619402

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67141}}^1$

素因数の和:67173

約数の個数: 16

約数和(自身を含む): 38673792

約数和(自身を除く): 17054390

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 67141, 134282, 469987, 939974, 1544243, 3088486, 10809701, 21619402]

約数ペア:

[(1, 21619402), (2, 10809701), (7, 3088486), (14, 1544243), (23, 939974), (46, 469987), (161, 134282), (322, 67141)]