21289860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118277}}^1$

素因数の和:118292

約数の個数: 36

約数和(自身を含む): 64579788

約数和(自身を除く): 43289928

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118277, 236554, 354831, 473108, 591385, 709662, 1064493, 1182770, 1419324, 1774155, 2128986, 2365540, 3548310, 4257972, 5322465, 7096620, 10644930, 21289860]

約数ペア:

[(1, 21289860), (2, 10644930), (3, 7096620), (4, 5322465), (5, 4257972), (6, 3548310), (9, 2365540), (10, 2128986), (12, 1774155), (15, 1419324), (18, 1182770), (20, 1064493), (30, 709662), (36, 591385), (45, 473108), (60, 354831), (90, 236554), (180, 118277)]