21242172

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{5881}}^1$

素因数の和:5938

約数の個数: 48

約数和(自身を含む): 57972992

約数和(自身を除く): 36730820

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 84, 86, 129, 172, 258, 301, 516, 602, 903, 1204, 1806, 3612, 5881, 11762, 17643, 23524, 35286, 41167, 70572, 82334, 123501, 164668, 247002, 252883, 494004, 505766, 758649, 1011532, 1517298, 1770181, 3034596, 3540362, 5310543, 7080724, 10621086, 21242172]

約数ペア:

[(1, 21242172), (2, 10621086), (3, 7080724), (4, 5310543), (6, 3540362), (7, 3034596), (12, 1770181), (14, 1517298), (21, 1011532), (28, 758649), (42, 505766), (43, 494004), (84, 252883), (86, 247002), (129, 164668), (172, 123501), (258, 82334), (301, 70572), (516, 41167), (602, 35286), (903, 23524), (1204, 17643), (1806, 11762), (3612, 5881)]