21560035

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{641}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 30600288

約数和(自身を除く): 9040253

約数列:

[1, 5, 7, 31, 35, 155, 217, 641, 961, 1085, 3205, 4487, 4805, 6727, 19871, 22435, 33635, 99355, 139097, 616001, 695485, 3080005, 4312007, 21560035]

約数ペア:

[(1, 21560035), (5, 4312007), (7, 3080005), (31, 695485), (35, 616001), (155, 139097), (217, 99355), (641, 33635), (961, 22435), (1085, 19871), (3205, 6727), (4487, 4805)]