20181686

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4463}}^1$

素因数の和:4508

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 18387274

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 266, 323, 646, 2261, 4463, 4522, 8926, 31241, 62482, 75871, 84797, 151742, 169594, 531097, 593579, 1062194, 1187158, 1441549, 2883098, 10090843, 20181686]

約数ペア:

[(1, 20181686), (2, 10090843), (7, 2883098), (14, 1441549), (17, 1187158), (19, 1062194), (34, 593579), (38, 531097), (119, 169594), (133, 151742), (238, 84797), (266, 75871), (323, 62482), (646, 31241), (2261, 8926), (4463, 4522)]