20721768

素因数分解:

$2^3\times 3^1\times {\mathrm{443}}^1\times {\mathrm{1949}}^1$

素因数の和:2401

約数の個数: 32

約数和(自身を含む): 51948000

約数和(自身を除く): 31226232

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 443, 886, 1329, 1772, 1949, 2658, 3544, 3898, 5316, 5847, 7796, 10632, 11694, 15592, 23388, 46776, 863407, 1726814, 2590221, 3453628, 5180442, 6907256, 10360884, 20721768]

約数ペア:

[(1, 20721768), (2, 10360884), (3, 6907256), (4, 5180442), (6, 3453628), (8, 2590221), (12, 1726814), (24, 863407), (443, 46776), (886, 23388), (1329, 15592), (1772, 11694), (1949, 10632), (2658, 7796), (3544, 5847), (3898, 5316)]