20021307

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1783}}^1$

素因数の和:2002

約数の個数: 16

約数和(自身を含む): 28258560

約数和(自身を除く): 8237253

約数列:

[1, 3, 19, 57, 197, 591, 1783, 3743, 5349, 11229, 33877, 101631, 351251, 1053753, 6673769, 20021307]

約数ペア:

[(1, 20021307), (3, 6673769), (19, 1053753), (57, 351251), (197, 101631), (591, 33877), (1783, 11229), (3743, 5349)]