21879214

素因数分解:

$2^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{7933}}^1$

素因数の和:8139

約数の個数: 16

約数和(自身を含む): 37702368

約数和(自身を除く): 15823154

約数列:

[1, 2, 7, 14, 197, 394, 1379, 2758, 7933, 15866, 55531, 111062, 1562801, 3125602, 10939607, 21879214]

約数ペア:

[(1, 21879214), (2, 10939607), (7, 3125602), (14, 1562801), (197, 111062), (394, 55531), (1379, 15866), (2758, 7933)]