20678992

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68023}}^1$

素因数の和:68050

約数の個数: 20

約数和(自身を含む): 42174880

約数和(自身を除く): 21495888

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68023, 136046, 272092, 544184, 1088368, 1292437, 2584874, 5169748, 10339496, 20678992]

約数ペア:

[(1, 20678992), (2, 10339496), (4, 5169748), (8, 2584874), (16, 1292437), (19, 1088368), (38, 544184), (76, 272092), (152, 136046), (304, 68023)]