21119886

素因数分解:

$2^1\times 3^3\times {\mathrm{421}}^1\times {\mathrm{929}}^1$

素因数の和:1361

約数の個数: 32

約数和(自身を含む): 47095200

約数和(自身を除く): 25975314

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 421, 842, 929, 1263, 1858, 2526, 2787, 3789, 5574, 7578, 8361, 11367, 16722, 22734, 25083, 50166, 391109, 782218, 1173327, 2346654, 3519981, 7039962, 10559943, 21119886]

約数ペア:

[(1, 21119886), (2, 10559943), (3, 7039962), (6, 3519981), (9, 2346654), (18, 1173327), (27, 782218), (54, 391109), (421, 50166), (842, 25083), (929, 22734), (1263, 16722), (1858, 11367), (2526, 8361), (2787, 7578), (3789, 5574)]