19890758

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8581}}^1$

素因数の和:8663

約数の個数: 16

約数和(自身を含む): 31925040

約数和(自身を除く): 12034282

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 8581, 17162, 163039, 326078, 523441, 1046882, 9945379, 19890758]

約数ペア:

[(1, 19890758), (2, 9945379), (19, 1046882), (38, 523441), (61, 326078), (122, 163039), (1159, 17162), (2318, 8581)]