18901792

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6491}}^1$

素因数の和:6521

約数の個数: 48

約数和(自身を含む): 45807552

約数和(自身を除く): 26905760

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 6491, 12982, 25964, 45437, 51928, 84383, 90874, 103856, 168766, 181748, 207712, 337532, 363496, 590681, 675064, 726992, 1181362, 1350128, 1453984, 2362724, 2700256, 4725448, 9450896, 18901792]

約数ペア:

[(1, 18901792), (2, 9450896), (4, 4725448), (7, 2700256), (8, 2362724), (13, 1453984), (14, 1350128), (16, 1181362), (26, 726992), (28, 675064), (32, 590681), (52, 363496), (56, 337532), (91, 207712), (104, 181748), (112, 168766), (182, 103856), (208, 90874), (224, 84383), (364, 51928), (416, 45437), (728, 25964), (1456, 12982), (2912, 6491)]