21994628

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{1153}}^1$

素因数の和:1427

約数の個数: 24

約数和(自身を含む): 40713120

約数和(自身を除く): 18718492

約数列:

[1, 2, 4, 19, 38, 76, 251, 502, 1004, 1153, 2306, 4612, 4769, 9538, 19076, 21907, 43814, 87628, 289403, 578806, 1157612, 5498657, 10997314, 21994628]

約数ペア:

[(1, 21994628), (2, 10997314), (4, 5498657), (19, 1157612), (38, 578806), (76, 289403), (251, 87628), (502, 43814), (1004, 21907), (1153, 19076), (2306, 9538), (4612, 4769)]