21692440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7043}}^1$

素因数の和:7072

約数の個数: 64

約数和(自身を含む): 60860160

約数和(自身を除く): 39167720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 7043, 14086, 28172, 35215, 49301, 56344, 70430, 77473, 98602, 140860, 154946, 197204, 246505, 281720, 309892, 387365, 394408, 493010, 542311, 619784, 774730, 986020, 1084622, 1549460, 1972040, 2169244, 2711555, 3098920, 4338488, 5423110, 10846220, 21692440]

約数ペア:

[(1, 21692440), (2, 10846220), (4, 5423110), (5, 4338488), (7, 3098920), (8, 2711555), (10, 2169244), (11, 1972040), (14, 1549460), (20, 1084622), (22, 986020), (28, 774730), (35, 619784), (40, 542311), (44, 493010), (55, 394408), (56, 387365), (70, 309892), (77, 281720), (88, 246505), (110, 197204), (140, 154946), (154, 140860), (220, 98602), (280, 77473), (308, 70430), (385, 56344), (440, 49301), (616, 35215), (770, 28172), (1540, 14086), (3080, 7043)]