21042774

素因数分解:

$2^1\times 3^3\times {\mathrm{347}}^1\times {\mathrm{1123}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 46938240

約数和(自身を除く): 25895466

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 347, 694, 1041, 1123, 2082, 2246, 3123, 3369, 6246, 6738, 9369, 10107, 18738, 20214, 30321, 60642, 389681, 779362, 1169043, 2338086, 3507129, 7014258, 10521387, 21042774]

約数ペア:

[(1, 21042774), (2, 10521387), (3, 7014258), (6, 3507129), (9, 2338086), (18, 1169043), (27, 779362), (54, 389681), (347, 60642), (694, 30321), (1041, 20214), (1123, 18738), (2082, 10107), (2246, 9369), (3123, 6738), (3369, 6246)]