21516824

素因数分解:

$2^3\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1723}}^1$

素因数の和:1959

約数の個数: 32

約数和(自身を含む): 46341120

約数和(自身を除く): 24824296

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 223, 446, 892, 1561, 1723, 1784, 3122, 3446, 6244, 6892, 12061, 12488, 13784, 24122, 48244, 96488, 384229, 768458, 1536916, 2689603, 3073832, 5379206, 10758412, 21516824]

約数ペア:

[(1, 21516824), (2, 10758412), (4, 5379206), (7, 3073832), (8, 2689603), (14, 1536916), (28, 768458), (56, 384229), (223, 96488), (446, 48244), (892, 24122), (1561, 13784), (1723, 12488), (1784, 12061), (3122, 6892), (3446, 6244)]