19889072

素因数分解:

$2^4\times 7^1\times {\mathrm{311}}^1\times {\mathrm{571}}^1$

素因数の和:897

約数の個数: 40

約数和(自身を含む): 44259072

約数和(自身を除く): 24370000

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 311, 571, 622, 1142, 1244, 2177, 2284, 2488, 3997, 4354, 4568, 4976, 7994, 8708, 9136, 15988, 17416, 31976, 34832, 63952, 177581, 355162, 710324, 1243067, 1420648, 2486134, 2841296, 4972268, 9944536, 19889072]

約数ペア:

[(1, 19889072), (2, 9944536), (4, 4972268), (7, 2841296), (8, 2486134), (14, 1420648), (16, 1243067), (28, 710324), (56, 355162), (112, 177581), (311, 63952), (571, 34832), (622, 31976), (1142, 17416), (1244, 15988), (2177, 9136), (2284, 8708), (2488, 7994), (3997, 4976), (4354, 4568)]