21054750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:506

約数の個数: 64

約数和(自身を含む): 53464320

約数和(自身を除く): 32409570

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 67, 75, 125, 134, 150, 201, 250, 335, 375, 402, 419, 670, 750, 838, 1005, 1257, 1675, 2010, 2095, 2514, 3350, 4190, 5025, 6285, 8375, 10050, 10475, 12570, 16750, 20950, 25125, 28073, 31425, 50250, 52375, 56146, 62850, 84219, 104750, 140365, 157125, 168438, 280730, 314250, 421095, 701825, 842190, 1403650, 2105475, 3509125, 4210950, 7018250, 10527375, 21054750]

約数ペア:

[(1, 21054750), (2, 10527375), (3, 7018250), (5, 4210950), (6, 3509125), (10, 2105475), (15, 1403650), (25, 842190), (30, 701825), (50, 421095), (67, 314250), (75, 280730), (125, 168438), (134, 157125), (150, 140365), (201, 104750), (250, 84219), (335, 62850), (375, 56146), (402, 52375), (419, 50250), (670, 31425), (750, 28073), (838, 25125), (1005, 20950), (1257, 16750), (1675, 12570), (2010, 10475), (2095, 10050), (2514, 8375), (3350, 6285), (4190, 5025)]