21456050

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5573}}^1$

素因数の和:5603

約数の個数: 48

約数和(自身を含む): 49764672

約数和(自身を除く): 28308622

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925, 3850, 5573, 11146, 27865, 39011, 55730, 61303, 78022, 122606, 139325, 195055, 278650, 306515, 390110, 429121, 613030, 858242, 975275, 1532575, 1950550, 2145605, 3065150, 4291210, 10728025, 21456050]

約数ペア:

[(1, 21456050), (2, 10728025), (5, 4291210), (7, 3065150), (10, 2145605), (11, 1950550), (14, 1532575), (22, 975275), (25, 858242), (35, 613030), (50, 429121), (55, 390110), (70, 306515), (77, 278650), (110, 195055), (154, 139325), (175, 122606), (275, 78022), (350, 61303), (385, 55730), (550, 39011), (770, 27865), (1925, 11146), (3850, 5573)]