21000426

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3539}}^1$

素因数の和:3610

約数の個数: 32

約数和(自身を含む): 44858880

約数和(自身を除く): 23858454

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 86, 129, 138, 258, 989, 1978, 2967, 3539, 5934, 7078, 10617, 21234, 81397, 152177, 162794, 244191, 304354, 456531, 488382, 913062, 3500071, 7000142, 10500213, 21000426]

約数ペア:

[(1, 21000426), (2, 10500213), (3, 7000142), (6, 3500071), (23, 913062), (43, 488382), (46, 456531), (69, 304354), (86, 244191), (129, 162794), (138, 152177), (258, 81397), (989, 21234), (1978, 10617), (2967, 7078), (3539, 5934)]