21717208

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{907}}^1$

素因数の和:1027

約数の個数: 32

約数和(自身を含む): 42330960

約数和(自身を除く): 20613752

約数列:

[1, 2, 4, 8, 41, 73, 82, 146, 164, 292, 328, 584, 907, 1814, 2993, 3628, 5986, 7256, 11972, 23944, 37187, 66211, 74374, 132422, 148748, 264844, 297496, 529688, 2714651, 5429302, 10858604, 21717208]

約数ペア:

[(1, 21717208), (2, 10858604), (4, 5429302), (8, 2714651), (41, 529688), (73, 297496), (82, 264844), (146, 148748), (164, 132422), (292, 74374), (328, 66211), (584, 37187), (907, 23944), (1814, 11972), (2993, 7256), (3628, 5986)]