19864538

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12157}}^1$

素因数の和:12221

約数の個数: 16

約数和(自身を含む): 32097120

約数和(自身を除く): 12232582

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12157, 24314, 230983, 461966, 522751, 1045502, 9932269, 19864538]

約数ペア:

[(1, 19864538), (2, 9932269), (19, 1045502), (38, 522751), (43, 461966), (86, 230983), (817, 24314), (1634, 12157)]