21379500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4751}}^1$

素因数の和:4776

約数の個数: 72

約数和(自身を含む): 67459392

約数和(自身を除く): 46079892

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, 4751, 9502, 14253, 19004, 23755, 28506, 42759, 47510, 57012, 71265, 85518, 95020, 118775, 142530, 171036, 213795, 237550, 285060, 356325, 427590, 475100, 593875, 712650, 855180, 1068975, 1187750, 1425300, 1781625, 2137950, 2375500, 3563250, 4275900, 5344875, 7126500, 10689750, 21379500]

約数ペア:

[(1, 21379500), (2, 10689750), (3, 7126500), (4, 5344875), (5, 4275900), (6, 3563250), (9, 2375500), (10, 2137950), (12, 1781625), (15, 1425300), (18, 1187750), (20, 1068975), (25, 855180), (30, 712650), (36, 593875), (45, 475100), (50, 427590), (60, 356325), (75, 285060), (90, 237550), (100, 213795), (125, 171036), (150, 142530), (180, 118775), (225, 95020), (250, 85518), (300, 71265), (375, 57012), (450, 47510), (500, 42759), (750, 28506), (900, 23755), (1125, 19004), (1500, 14253), (2250, 9502), (4500, 4751)]