21491988

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{36551}}^1$

素因数の和:36572

約数の個数: 36

約数和(自身を含む): 58336992

約数和(自身を除く): 36845004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 588, 36551, 73102, 109653, 146204, 219306, 255857, 438612, 511714, 767571, 1023428, 1535142, 1790999, 3070284, 3581998, 5372997, 7163996, 10745994, 21491988]

約数ペア:

[(1, 21491988), (2, 10745994), (3, 7163996), (4, 5372997), (6, 3581998), (7, 3070284), (12, 1790999), (14, 1535142), (21, 1023428), (28, 767571), (42, 511714), (49, 438612), (84, 255857), (98, 219306), (147, 146204), (196, 109653), (294, 73102), (588, 36551)]