21043656

素因数分解:

$2^3\times 3^2\times {\mathrm{331}}^1\times {\mathrm{883}}^1$

素因数の和:1226

約数の個数: 48

約数和(自身を含む): 57230160

約数和(自身を除く): 36186504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 331, 662, 883, 993, 1324, 1766, 1986, 2648, 2649, 2979, 3532, 3972, 5298, 5958, 7064, 7944, 7947, 10596, 11916, 15894, 21192, 23832, 31788, 63576, 292273, 584546, 876819, 1169092, 1753638, 2338184, 2630457, 3507276, 5260914, 7014552, 10521828, 21043656]

約数ペア:

[(1, 21043656), (2, 10521828), (3, 7014552), (4, 5260914), (6, 3507276), (8, 2630457), (9, 2338184), (12, 1753638), (18, 1169092), (24, 876819), (36, 584546), (72, 292273), (331, 63576), (662, 31788), (883, 23832), (993, 21192), (1324, 15894), (1766, 11916), (1986, 10596), (2648, 7947), (2649, 7944), (2979, 7064), (3532, 5958), (3972, 5298)]