20574488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{809}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 44760600

約数和(自身を除く): 24186112

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 136, 187, 289, 374, 578, 748, 809, 1156, 1496, 1618, 2312, 3179, 3236, 6358, 6472, 8899, 12716, 13753, 17798, 25432, 27506, 35596, 55012, 71192, 110024, 151283, 233801, 302566, 467602, 605132, 935204, 1210264, 1870408, 2571811, 5143622, 10287244, 20574488]

約数ペア:

[(1, 20574488), (2, 10287244), (4, 5143622), (8, 2571811), (11, 1870408), (17, 1210264), (22, 935204), (34, 605132), (44, 467602), (68, 302566), (88, 233801), (136, 151283), (187, 110024), (289, 71192), (374, 55012), (578, 35596), (748, 27506), (809, 25432), (1156, 17798), (1496, 13753), (1618, 12716), (2312, 8899), (3179, 6472), (3236, 6358)]