21631568

素因数分解:

$2^4\times 7^1\times {\mathrm{193139}}^1$

素因数の和:193154

約数の個数: 20

約数和(自身を含む): 47898720

約数和(自身を除く): 26267152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193139, 386278, 772556, 1351973, 1545112, 2703946, 3090224, 5407892, 10815784, 21631568]

約数ペア:

[(1, 21631568), (2, 10815784), (4, 5407892), (7, 3090224), (8, 2703946), (14, 1545112), (16, 1351973), (28, 772556), (56, 386278), (112, 193139)]