20411888

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5879}}^1$

素因数の和:5925

約数の個数: 40

約数和(自身を含む): 46663680

約数和(自身を除く): 26251792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 5879, 11758, 23516, 41153, 47032, 82306, 94064, 164612, 182249, 329224, 364498, 658448, 728996, 1275743, 1457992, 2551486, 2915984, 5102972, 10205944, 20411888]

約数ペア:

[(1, 20411888), (2, 10205944), (4, 5102972), (7, 2915984), (8, 2551486), (14, 1457992), (16, 1275743), (28, 728996), (31, 658448), (56, 364498), (62, 329224), (112, 182249), (124, 164612), (217, 94064), (248, 82306), (434, 47032), (496, 41153), (868, 23516), (1736, 11758), (3472, 5879)]