21291424

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8641}}^1$

素因数の和:8669

約数の個数: 48

約数和(自身を含む): 52266816

約数和(自身を除く): 30975392

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8641, 17282, 34564, 60487, 69128, 95051, 120974, 138256, 190102, 241948, 276512, 380204, 483896, 665357, 760408, 967792, 1330714, 1520816, 1935584, 2661428, 3041632, 5322856, 10645712, 21291424]

約数ペア:

[(1, 21291424), (2, 10645712), (4, 5322856), (7, 3041632), (8, 2661428), (11, 1935584), (14, 1520816), (16, 1330714), (22, 967792), (28, 760408), (32, 665357), (44, 483896), (56, 380204), (77, 276512), (88, 241948), (112, 190102), (154, 138256), (176, 120974), (224, 95051), (308, 69128), (352, 60487), (616, 34564), (1232, 17282), (2464, 8641)]