21894215

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1187}}^1$

素因数の和:1247

約数の個数: 32

約数和(自身を含む): 32845824

約数和(自身を除く): 10951609

約数列:

[1, 5, 7, 17, 31, 35, 85, 119, 155, 217, 527, 595, 1085, 1187, 2635, 3689, 5935, 8309, 18445, 20179, 36797, 41545, 100895, 141253, 183985, 257579, 625549, 706265, 1287895, 3127745, 4378843, 21894215]

約数ペア:

[(1, 21894215), (5, 4378843), (7, 3127745), (17, 1287895), (31, 706265), (35, 625549), (85, 257579), (119, 183985), (155, 141253), (217, 100895), (527, 41545), (595, 36797), (1085, 20179), (1187, 18445), (2635, 8309), (3689, 5935)]