21115072

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:449

約数の個数: 56

約数和(自身を含む): 46360080

約数和(自身を除く): 25245008

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 89, 176, 178, 337, 352, 356, 674, 704, 712, 979, 1348, 1424, 1958, 2696, 2848, 3707, 3916, 5392, 5696, 7414, 7832, 10784, 14828, 15664, 21568, 29656, 29993, 31328, 59312, 59986, 62656, 118624, 119972, 237248, 239944, 329923, 479888, 659846, 959776, 1319692, 1919552, 2639384, 5278768, 10557536, 21115072]

約数ペア:

[(1, 21115072), (2, 10557536), (4, 5278768), (8, 2639384), (11, 1919552), (16, 1319692), (22, 959776), (32, 659846), (44, 479888), (64, 329923), (88, 239944), (89, 237248), (176, 119972), (178, 118624), (337, 62656), (352, 59986), (356, 59312), (674, 31328), (704, 29993), (712, 29656), (979, 21568), (1348, 15664), (1424, 14828), (1958, 10784), (2696, 7832), (2848, 7414), (3707, 5696), (3916, 5392)]