20427831

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1783}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 31541120

約数和(自身を除く): 11113289

約数列:

[1, 3, 9, 19, 57, 67, 171, 201, 603, 1273, 1783, 3819, 5349, 11457, 16047, 33877, 101631, 119461, 304893, 358383, 1075149, 2269759, 6809277, 20427831]

約数ペア:

[(1, 20427831), (3, 6809277), (9, 2269759), (19, 1075149), (57, 358383), (67, 304893), (171, 119461), (201, 101631), (603, 33877), (1273, 16047), (1783, 11457), (3819, 5349)]