18876484

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:976

約数の個数: 36

約数和(自身を含む): 37195312

約数和(自身を除く): 18318828

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 242, 473, 484, 907, 946, 1814, 1892, 3628, 5203, 9977, 10406, 19954, 20812, 39001, 39908, 78002, 109747, 156004, 219494, 429011, 438988, 858022, 1716044, 4719121, 9438242, 18876484]

約数ペア:

[(1, 18876484), (2, 9438242), (4, 4719121), (11, 1716044), (22, 858022), (43, 438988), (44, 429011), (86, 219494), (121, 156004), (172, 109747), (242, 78002), (473, 39908), (484, 39001), (907, 20812), (946, 19954), (1814, 10406), (1892, 9977), (3628, 5203)]