21087796

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{947}}^1$

素因数の和:1263

約数の個数: 24

約数和(自身を含む): 39019680

約数和(自身を除く): 17931884

約数列:

[1, 2, 4, 19, 38, 76, 293, 586, 947, 1172, 1894, 3788, 5567, 11134, 17993, 22268, 35986, 71972, 277471, 554942, 1109884, 5271949, 10543898, 21087796]

約数ペア:

[(1, 21087796), (2, 10543898), (4, 5271949), (19, 1109884), (38, 554942), (76, 277471), (293, 71972), (586, 35986), (947, 22268), (1172, 17993), (1894, 11134), (3788, 5567)]