18719838

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:573

約数の個数: 48

約数和(自身を含む): 42831360

約数和(自身を除く): 24111522

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 103, 138, 206, 207, 309, 414, 439, 618, 878, 927, 1317, 1854, 2369, 2634, 3951, 4738, 7107, 7902, 10097, 14214, 20194, 21321, 30291, 42642, 45217, 60582, 90434, 90873, 135651, 181746, 271302, 406953, 813906, 1039991, 2079982, 3119973, 6239946, 9359919, 18719838]

約数ペア:

[(1, 18719838), (2, 9359919), (3, 6239946), (6, 3119973), (9, 2079982), (18, 1039991), (23, 813906), (46, 406953), (69, 271302), (103, 181746), (138, 135651), (206, 90873), (207, 90434), (309, 60582), (414, 45217), (439, 42642), (618, 30291), (878, 21321), (927, 20194), (1317, 14214), (1854, 10097), (2369, 7902), (2634, 7107), (3951, 4738)]