21091400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9587}}^1$

素因数の和:9614

約数の個数: 48

約数和(自身を含む): 53501040

約数和(自身を除く): 32409640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9587, 19174, 38348, 47935, 76696, 95870, 105457, 191740, 210914, 239675, 383480, 421828, 479350, 527285, 843656, 958700, 1054570, 1917400, 2109140, 2636425, 4218280, 5272850, 10545700, 21091400]

約数ペア:

[(1, 21091400), (2, 10545700), (4, 5272850), (5, 4218280), (8, 2636425), (10, 2109140), (11, 1917400), (20, 1054570), (22, 958700), (25, 843656), (40, 527285), (44, 479350), (50, 421828), (55, 383480), (88, 239675), (100, 210914), (110, 191740), (200, 105457), (220, 95870), (275, 76696), (440, 47935), (550, 38348), (1100, 19174), (2200, 9587)]