21415023

素因数分解:

$3^4\times 7^1\times {\mathrm{179}}^1\times {\mathrm{211}}^1$

素因数の和:409

約数の個数: 40

約数和(自身を含む): 36938880

約数和(自身を除く): 15523857

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 179, 189, 211, 537, 567, 633, 1253, 1477, 1611, 1899, 3759, 4431, 4833, 5697, 11277, 13293, 14499, 17091, 33831, 37769, 39879, 101493, 113307, 119637, 264383, 339921, 793149, 1019763, 2379447, 3059289, 7138341, 21415023]

約数ペア:

[(1, 21415023), (3, 7138341), (7, 3059289), (9, 2379447), (21, 1019763), (27, 793149), (63, 339921), (81, 264383), (179, 119637), (189, 113307), (211, 101493), (537, 39879), (567, 37769), (633, 33831), (1253, 17091), (1477, 14499), (1611, 13293), (1899, 11277), (3759, 5697), (4431, 4833)]