21389862

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{11923}}^1$

素因数の和:11964

約数の個数: 32

約数和(自身を含む): 48077568

約数和(自身を除く): 26687706

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 598, 897, 1794, 11923, 23846, 35769, 71538, 154999, 274229, 309998, 464997, 548458, 822687, 929994, 1645374, 3564977, 7129954, 10694931, 21389862]

約数ペア:

[(1, 21389862), (2, 10694931), (3, 7129954), (6, 3564977), (13, 1645374), (23, 929994), (26, 822687), (39, 548458), (46, 464997), (69, 309998), (78, 274229), (138, 154999), (299, 71538), (598, 35769), (897, 23846), (1794, 11923)]