21001572

素因数分解:

$2^2\times 3^3\times {\mathrm{163}}^1\times {\mathrm{1193}}^1$

素因数の和:1369

約数の個数: 48

約数和(自身を含む): 54828480

約数和(自身を除く): 33826908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 163, 326, 489, 652, 978, 1193, 1467, 1956, 2386, 2934, 3579, 4401, 4772, 5868, 7158, 8802, 10737, 14316, 17604, 21474, 32211, 42948, 64422, 128844, 194459, 388918, 583377, 777836, 1166754, 1750131, 2333508, 3500262, 5250393, 7000524, 10500786, 21001572]

約数ペア:

[(1, 21001572), (2, 10500786), (3, 7000524), (4, 5250393), (6, 3500262), (9, 2333508), (12, 1750131), (18, 1166754), (27, 777836), (36, 583377), (54, 388918), (108, 194459), (163, 128844), (326, 64422), (489, 42948), (652, 32211), (978, 21474), (1193, 17604), (1467, 14316), (1956, 10737), (2386, 8802), (2934, 7158), (3579, 5868), (4401, 4772)]