20040307

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2843}}^1$

素因数の和:2922

約数の個数: 16

約数和(自身を含む): 24572160

約数和(自身を除く): 4531853

約数列:

[1, 7, 19, 53, 133, 371, 1007, 2843, 7049, 19901, 54017, 150679, 378119, 1054753, 2862901, 20040307]

約数ペア:

[(1, 20040307), (7, 2862901), (19, 1054753), (53, 378119), (133, 150679), (371, 54017), (1007, 19901), (2843, 7049)]