21052257840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29239247}}^1$

素因数の和:29239266

約数の個数: 60

約数和(自身を含む): 70700501664

約数和(自身を除く): 49648243824

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29239247, 58478494, 87717741, 116956988, 146196235, 175435482, 233913976, 263153223, 292392470, 350870964, 438588705, 467827952, 526306446, 584784940, 701741928, 877177410, 1052612892, 1169569880, 1315766115, 1403483856, 1754354820, 2105225784, 2339139760, 2631532230, 3508709640, 4210451568, 5263064460, 7017419280, 10526128920, 21052257840]

約数ペア:

[(1, 21052257840), (2, 10526128920), (3, 7017419280), (4, 5263064460), (5, 4210451568), (6, 3508709640), (8, 2631532230), (9, 2339139760), (10, 2105225784), (12, 1754354820), (15, 1403483856), (16, 1315766115), (18, 1169569880), (20, 1052612892), (24, 877177410), (30, 701741928), (36, 584784940), (40, 526306446), (45, 467827952), (48, 438588705), (60, 350870964), (72, 292392470), (80, 263153223), (90, 233913976), (120, 175435482), (144, 146196235), (180, 116956988), (240, 87717741), (360, 58478494), (720, 29239247)]