21738544

素因数分解:

$2^4\times {\mathrm{643}}^1\times {\mathrm{2113}}^1$

素因数の和:2764

約数の個数: 20

約数和(自身を含む): 42203896

約数和(自身を除く): 20465352

約数列:

[1, 2, 4, 8, 16, 643, 1286, 2113, 2572, 4226, 5144, 8452, 10288, 16904, 33808, 1358659, 2717318, 5434636, 10869272, 21738544]

約数ペア:

[(1, 21738544), (2, 10869272), (4, 5434636), (8, 2717318), (16, 1358659), (643, 33808), (1286, 16904), (2113, 10288), (2572, 8452), (4226, 5144)]