19194512

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1213}}^1$

素因数の和:1287

約数の個数: 40

約数和(自身を含む): 39741504

約数和(自身を除く): 20546992

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1213, 1978, 2426, 3956, 4852, 7912, 9704, 15824, 19408, 27899, 52159, 55798, 104318, 111596, 208636, 223192, 417272, 446384, 834544, 1199657, 2399314, 4798628, 9597256, 19194512]

約数ペア:

[(1, 19194512), (2, 9597256), (4, 4798628), (8, 2399314), (16, 1199657), (23, 834544), (43, 446384), (46, 417272), (86, 223192), (92, 208636), (172, 111596), (184, 104318), (344, 55798), (368, 52159), (688, 27899), (989, 19408), (1213, 15824), (1978, 9704), (2426, 7912), (3956, 4852)]