21441609

素因数分解:

$3^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1613}}^1$

素因数の和:1837

約数の個数: 24

約数和(自身を含む): 35585472

約数和(自身を除く): 14143863

約数列:

[1, 3, 7, 9, 21, 63, 211, 633, 1477, 1613, 1899, 4431, 4839, 11291, 13293, 14517, 33873, 101619, 340343, 1021029, 2382401, 3063087, 7147203, 21441609]

約数ペア:

[(1, 21441609), (3, 7147203), (7, 3063087), (9, 2382401), (21, 1021029), (63, 340343), (211, 101619), (633, 33873), (1477, 14517), (1613, 13293), (1899, 11291), (4431, 4839)]