21423500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{6121}}^1$

素因数の和:6147

約数の個数: 48

約数和(自身を含む): 53481792

約数和(自身を除く): 32058292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 700, 875, 1750, 3500, 6121, 12242, 24484, 30605, 42847, 61210, 85694, 122420, 153025, 171388, 214235, 306050, 428470, 612100, 765125, 856940, 1071175, 1530250, 2142350, 3060500, 4284700, 5355875, 10711750, 21423500]

約数ペア:

[(1, 21423500), (2, 10711750), (4, 5355875), (5, 4284700), (7, 3060500), (10, 2142350), (14, 1530250), (20, 1071175), (25, 856940), (28, 765125), (35, 612100), (50, 428470), (70, 306050), (100, 214235), (125, 171388), (140, 153025), (175, 122420), (250, 85694), (350, 61210), (500, 42847), (700, 30605), (875, 24484), (1750, 12242), (3500, 6121)]