21497952

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31991}}^1$

素因数の和:32011

約数の個数: 48

約数和(自身を含む): 64495872

約数和(自身を除く): 42997920

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 31991, 63982, 95973, 127964, 191946, 223937, 255928, 383892, 447874, 511856, 671811, 767784, 895748, 1023712, 1343622, 1535568, 1791496, 2687244, 3071136, 3582992, 5374488, 7165984, 10748976, 21497952]

約数ペア:

[(1, 21497952), (2, 10748976), (3, 7165984), (4, 5374488), (6, 3582992), (7, 3071136), (8, 2687244), (12, 1791496), (14, 1535568), (16, 1343622), (21, 1023712), (24, 895748), (28, 767784), (32, 671811), (42, 511856), (48, 447874), (56, 383892), (84, 255928), (96, 223937), (112, 191946), (168, 127964), (224, 95973), (336, 63982), (672, 31991)]