21002113983

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{52951}}^1$

素因数の和:53127

約数の個数: 32

約数和(自身を含む): 29890344960

約数和(自身を除く): 8888230977

約数列:

[1, 3, 29, 47, 87, 97, 141, 291, 1363, 2813, 4089, 4559, 8439, 13677, 52951, 132211, 158853, 396633, 1535579, 2488697, 4606737, 5136247, 7466091, 15408741, 72172213, 148951163, 216516639, 241403609, 446853489, 724210827, 7000704661, 21002113983]

約数ペア:

[(1, 21002113983), (3, 7000704661), (29, 724210827), (47, 446853489), (87, 241403609), (97, 216516639), (141, 148951163), (291, 72172213), (1363, 15408741), (2813, 7466091), (4089, 5136247), (4559, 4606737), (8439, 2488697), (13677, 1535579), (52951, 396633), (132211, 158853)]