218637356

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{1609}}^1$

素因数の和:1854

約数の個数: 48

約数和(自身を含む): 458734080

約数和(自身を除く): 240096724

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 211, 322, 422, 644, 844, 1477, 1609, 2954, 3218, 4853, 5908, 6436, 9706, 11263, 19412, 22526, 33971, 37007, 45052, 67942, 74014, 135884, 148028, 259049, 339499, 518098, 678998, 1036196, 1357996, 2376493, 4752986, 7808477, 9505972, 15616954, 31233908, 54659339, 109318678, 218637356]

約数ペア:

[(1, 218637356), (2, 109318678), (4, 54659339), (7, 31233908), (14, 15616954), (23, 9505972), (28, 7808477), (46, 4752986), (92, 2376493), (161, 1357996), (211, 1036196), (322, 678998), (422, 518098), (644, 339499), (844, 259049), (1477, 148028), (1609, 135884), (2954, 74014), (3218, 67942), (4853, 45052), (5908, 37007), (6436, 33971), (9706, 22526), (11263, 19412)]