21509100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23899}}^1$

素因数の和:23919

約数の個数: 54

約数和(自身を含む): 67421900

約数和(自身を除く): 45912800

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, 23899, 47798, 71697, 95596, 119495, 143394, 215091, 238990, 286788, 358485, 430182, 477980, 597475, 716970, 860364, 1075455, 1194950, 1433940, 1792425, 2150910, 2389900, 3584850, 4301820, 5377275, 7169700, 10754550, 21509100]

約数ペア:

[(1, 21509100), (2, 10754550), (3, 7169700), (4, 5377275), (5, 4301820), (6, 3584850), (9, 2389900), (10, 2150910), (12, 1792425), (15, 1433940), (18, 1194950), (20, 1075455), (25, 860364), (30, 716970), (36, 597475), (45, 477980), (50, 430182), (60, 358485), (75, 286788), (90, 238990), (100, 215091), (150, 143394), (180, 119495), (225, 95596), (300, 71697), (450, 47798), (900, 23899)]