19984286

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1171}}^1$

素因数の和:1256

約数の個数: 32

約数和(自身を含む): 36453888

約数和(自身を除く): 16469602

約数列:

[1, 2, 7, 14, 23, 46, 53, 106, 161, 322, 371, 742, 1171, 1219, 2342, 2438, 8197, 8533, 16394, 17066, 26933, 53866, 62063, 124126, 188531, 377062, 434441, 868882, 1427449, 2854898, 9992143, 19984286]

約数ペア:

[(1, 19984286), (2, 9992143), (7, 2854898), (14, 1427449), (23, 868882), (46, 434441), (53, 377062), (106, 188531), (161, 124126), (322, 62063), (371, 53866), (742, 26933), (1171, 17066), (1219, 16394), (2342, 8533), (2438, 8197)]