21309176

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{9281}}^1$

素因数の和:9335

約数の個数: 32

約数和(自身を含む): 46781280

約数和(自身を除く): 25472104

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1148, 2296, 9281, 18562, 37124, 64967, 74248, 129934, 259868, 380521, 519736, 761042, 1522084, 2663647, 3044168, 5327294, 10654588, 21309176]

約数ペア:

[(1, 21309176), (2, 10654588), (4, 5327294), (7, 3044168), (8, 2663647), (14, 1522084), (28, 761042), (41, 519736), (56, 380521), (82, 259868), (164, 129934), (287, 74248), (328, 64967), (574, 37124), (1148, 18562), (2296, 9281)]