21077756

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{44281}}^1$

素因数の和:44309

約数の個数: 24

約数和(自身を含む): 44636256

約数和(自身を除く): 23558500

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 44281, 88562, 177124, 309967, 619934, 752777, 1239868, 1505554, 3011108, 5269439, 10538878, 21077756]

約数ペア:

[(1, 21077756), (2, 10538878), (4, 5269439), (7, 3011108), (14, 1505554), (17, 1239868), (28, 752777), (34, 619934), (68, 309967), (119, 177124), (238, 88562), (476, 44281)]