21087900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23431}}^1$

素因数の和:23451

約数の個数: 54

約数和(自身を含む): 66101672

約数和(自身を除く): 45013772

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, 23431, 46862, 70293, 93724, 117155, 140586, 210879, 234310, 281172, 351465, 421758, 468620, 585775, 702930, 843516, 1054395, 1171550, 1405860, 1757325, 2108790, 2343100, 3514650, 4217580, 5271975, 7029300, 10543950, 21087900]

約数ペア:

[(1, 21087900), (2, 10543950), (3, 7029300), (4, 5271975), (5, 4217580), (6, 3514650), (9, 2343100), (10, 2108790), (12, 1757325), (15, 1405860), (18, 1171550), (20, 1054395), (25, 843516), (30, 702930), (36, 585775), (45, 468620), (50, 421758), (60, 351465), (75, 281172), (90, 234310), (100, 210879), (150, 140586), (180, 117155), (225, 93724), (300, 70293), (450, 46862), (900, 23431)]