21292758

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16661}}^1$

素因数の和:16740

約数の個数: 24

約数和(自身を含む): 46786896

約数和(自身を除く): 25494138

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 16661, 33322, 49983, 99966, 149949, 299898, 1182931, 2365862, 3548793, 7097586, 10646379, 21292758]

約数ペア:

[(1, 21292758), (2, 10646379), (3, 7097586), (6, 3548793), (9, 2365862), (18, 1182931), (71, 299898), (142, 149949), (213, 99966), (426, 49983), (639, 33322), (1278, 16661)]