21109500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4691}}^1$

素因数の和:4716

約数の個数: 72

約数和(自身を含む): 66607632

約数和(自身を除く): 45498132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 4691, 9382, 14073, 18764, 23455, 28146, 42219, 46910, 56292, 70365, 84438, 93820, 117275, 140730, 168876, 211095, 234550, 281460, 351825, 422190, 469100, 586375, 703650, 844380, 1055475, 1172750, 1407300, 1759125, 2110950, 2345500, 3518250, 4221900, 5277375, 7036500, 10554750, 21109500]

約数ペア:

[(1, 21109500), (2, 10554750), (3, 7036500), (4, 5277375), (5, 4221900), (6, 3518250), (9, 2345500), (10, 2110950), (12, 1759125), (15, 1407300), (18, 1172750), (20, 1055475), (25, 844380), (30, 703650), (36, 586375), (45, 469100), (50, 422190), (60, 351825), (75, 281460), (90, 234550), (100, 211095), (125, 168876), (150, 140730), (180, 117275), (225, 93820), (250, 84438), (300, 70365), (375, 56292), (450, 46910), (500, 42219), (750, 28146), (900, 23455), (1125, 18764), (1500, 14073), (2250, 9382), (4500, 4691)]