21420900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23801}}^1$

素因数の和:23821

約数の個数: 54

約数和(自身を含む): 67145442

約数和(自身を除く): 45724542

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 23801, 47602, 71403, 95204, 119005, 142806, 214209, 238010, 285612, 357015, 428418, 476020, 595025, 714030, 856836, 1071045, 1190050, 1428060, 1785075, 2142090, 2380100, 3570150, 4284180, 5355225, 7140300, 10710450, 21420900]

約数ペア:

[(1, 21420900), (2, 10710450), (3, 7140300), (4, 5355225), (5, 4284180), (6, 3570150), (9, 2380100), (10, 2142090), (12, 1785075), (15, 1428060), (18, 1190050), (20, 1071045), (25, 856836), (30, 714030), (36, 595025), (45, 476020), (50, 428418), (60, 357015), (75, 285612), (90, 238010), (100, 214209), (150, 142806), (180, 119005), (225, 95204), (300, 71403), (450, 47602), (900, 23801)]