20734784

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1493}}^1$

素因数の和:1543

約数の個数: 56

約数和(自身を含む): 48572928

約数和(自身を除く): 27838144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1493, 1736, 1984, 2986, 3472, 5972, 6944, 10451, 11944, 13888, 20902, 23888, 41804, 46283, 47776, 83608, 92566, 95552, 167216, 185132, 323981, 334432, 370264, 647962, 668864, 740528, 1295924, 1481056, 2591848, 2962112, 5183696, 10367392, 20734784]

約数ペア:

[(1, 20734784), (2, 10367392), (4, 5183696), (7, 2962112), (8, 2591848), (14, 1481056), (16, 1295924), (28, 740528), (31, 668864), (32, 647962), (56, 370264), (62, 334432), (64, 323981), (112, 185132), (124, 167216), (217, 95552), (224, 92566), (248, 83608), (434, 47776), (448, 46283), (496, 41804), (868, 23888), (992, 20902), (1493, 13888), (1736, 11944), (1984, 10451), (2986, 6944), (3472, 5972)]