21290004

素因数分解:

$2^2\times 3^2\times {\mathrm{107}}^1\times {\mathrm{5527}}^1$

素因数の和:5644

約数の個数: 36

約数和(自身を含む): 54329184

約数和(自身を除く): 33039180

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 107, 214, 321, 428, 642, 963, 1284, 1926, 3852, 5527, 11054, 16581, 22108, 33162, 49743, 66324, 99486, 198972, 591389, 1182778, 1774167, 2365556, 3548334, 5322501, 7096668, 10645002, 21290004]

約数ペア:

[(1, 21290004), (2, 10645002), (3, 7096668), (4, 5322501), (6, 3548334), (9, 2365556), (12, 1774167), (18, 1182778), (36, 591389), (107, 198972), (214, 99486), (321, 66324), (428, 49743), (642, 33162), (963, 22108), (1284, 16581), (1926, 11054), (3852, 5527)]