20121479978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{727}}^1\times {\mathrm{2099}}^1$

素因数の和:3194

約数の個数: 32

約数和(自身を含む): 31921344000

約数和(自身を除く): 11799864022

約数列:

[1, 2, 19, 38, 347, 694, 727, 1454, 2099, 4198, 6593, 13186, 13813, 27626, 39881, 79762, 252269, 504538, 728353, 1456706, 1525973, 3051946, 4793111, 9586222, 13838707, 27677414, 28993487, 57986974, 529512631, 1059025262, 10060739989, 20121479978]

約数ペア:

[(1, 20121479978), (2, 10060739989), (19, 1059025262), (38, 529512631), (347, 57986974), (694, 28993487), (727, 27677414), (1454, 13838707), (2099, 9586222), (4198, 4793111), (6593, 3051946), (13186, 1525973), (13813, 1456706), (27626, 728353), (39881, 504538), (79762, 252269)]