21812056

素因数分解:

$2^3\times 7^3\times {\mathrm{7949}}^1$

素因数の和:7976

約数の個数: 32

約数和(自身を含む): 47700000

約数和(自身を除く): 25887944

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 7949, 15898, 31796, 55643, 63592, 111286, 222572, 389501, 445144, 779002, 1558004, 2726507, 3116008, 5453014, 10906028, 21812056]

約数ペア:

[(1, 21812056), (2, 10906028), (4, 5453014), (7, 3116008), (8, 2726507), (14, 1558004), (28, 779002), (49, 445144), (56, 389501), (98, 222572), (196, 111286), (343, 63592), (392, 55643), (686, 31796), (1372, 15898), (2744, 7949)]