21281352

素因数分解:

$2^3\times 3^1\times {\mathrm{499}}^1\times {\mathrm{1777}}^1$

素因数の和:2285

約数の個数: 32

約数和(自身を含む): 53340000

約数和(自身を除く): 32058648

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 499, 998, 1497, 1777, 1996, 2994, 3554, 3992, 5331, 5988, 7108, 10662, 11976, 14216, 21324, 42648, 886723, 1773446, 2660169, 3546892, 5320338, 7093784, 10640676, 21281352]

約数ペア:

[(1, 21281352), (2, 10640676), (3, 7093784), (4, 5320338), (6, 3546892), (8, 2660169), (12, 1773446), (24, 886723), (499, 42648), (998, 21324), (1497, 14216), (1777, 11976), (1996, 10662), (2994, 7108), (3554, 5988), (3992, 5331)]