21403000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{1259}}^1$

素因数の和:1297

約数の個数: 64

約数和(自身を含む): 53071200

約数和(自身を除く): 31668200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 125, 136, 170, 200, 250, 340, 425, 500, 680, 850, 1000, 1259, 1700, 2125, 2518, 3400, 4250, 5036, 6295, 8500, 10072, 12590, 17000, 21403, 25180, 31475, 42806, 50360, 62950, 85612, 107015, 125900, 157375, 171224, 214030, 251800, 314750, 428060, 535075, 629500, 856120, 1070150, 1259000, 2140300, 2675375, 4280600, 5350750, 10701500, 21403000]

約数ペア:

[(1, 21403000), (2, 10701500), (4, 5350750), (5, 4280600), (8, 2675375), (10, 2140300), (17, 1259000), (20, 1070150), (25, 856120), (34, 629500), (40, 535075), (50, 428060), (68, 314750), (85, 251800), (100, 214030), (125, 171224), (136, 157375), (170, 125900), (200, 107015), (250, 85612), (340, 62950), (425, 50360), (500, 42806), (680, 31475), (850, 25180), (1000, 21403), (1259, 17000), (1700, 12590), (2125, 10072), (2518, 8500), (3400, 6295), (4250, 5036)]