21181864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{14159}}^1$

素因数の和:14193

約数の個数: 32

約数和(自身を含む): 45878400

約数和(自身を除く): 24696536

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 136, 187, 374, 748, 1496, 14159, 28318, 56636, 113272, 155749, 240703, 311498, 481406, 622996, 962812, 1245992, 1925624, 2647733, 5295466, 10590932, 21181864]

約数ペア:

[(1, 21181864), (2, 10590932), (4, 5295466), (8, 2647733), (11, 1925624), (17, 1245992), (22, 962812), (34, 622996), (44, 481406), (68, 311498), (88, 240703), (136, 155749), (187, 113272), (374, 56636), (748, 28318), (1496, 14159)]