21071250

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{1873}}^1$

素因数の和:1901

約数の個数: 60

約数和(自身を含む): 57080166

約数和(自身を除く): 36008916

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 125, 150, 225, 250, 375, 450, 625, 750, 1125, 1250, 1873, 1875, 2250, 3746, 3750, 5619, 5625, 9365, 11238, 11250, 16857, 18730, 28095, 33714, 46825, 56190, 84285, 93650, 140475, 168570, 234125, 280950, 421425, 468250, 702375, 842850, 1170625, 1404750, 2107125, 2341250, 3511875, 4214250, 7023750, 10535625, 21071250]

約数ペア:

[(1, 21071250), (2, 10535625), (3, 7023750), (5, 4214250), (6, 3511875), (9, 2341250), (10, 2107125), (15, 1404750), (18, 1170625), (25, 842850), (30, 702375), (45, 468250), (50, 421425), (75, 280950), (90, 234125), (125, 168570), (150, 140475), (225, 93650), (250, 84285), (375, 56190), (450, 46825), (625, 33714), (750, 28095), (1125, 18730), (1250, 16857), (1873, 11250), (1875, 11238), (2250, 9365), (3746, 5625), (3750, 5619)]