21094983

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{599}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 38438400

約数和(自身を除く): 17343417

約数列:

[1, 3, 7, 9, 13, 21, 39, 43, 63, 91, 117, 129, 273, 301, 387, 559, 599, 819, 903, 1677, 1797, 2709, 3913, 4193, 5031, 5391, 7787, 11739, 12579, 23361, 25757, 35217, 37737, 54509, 70083, 77271, 163527, 180299, 231813, 334841, 490581, 540897, 1004523, 1622691, 2343887, 3013569, 7031661, 21094983]

約数ペア:

[(1, 21094983), (3, 7031661), (7, 3013569), (9, 2343887), (13, 1622691), (21, 1004523), (39, 540897), (43, 490581), (63, 334841), (91, 231813), (117, 180299), (129, 163527), (273, 77271), (301, 70083), (387, 54509), (559, 37737), (599, 35217), (819, 25757), (903, 23361), (1677, 12579), (1797, 11739), (2709, 7787), (3913, 5391), (4193, 5031)]