20687549078

素因数分解:

$2^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{2143}}^1\times {\mathrm{2203}}^1$

素因数の和:4668

約数の個数: 32

約数和(自身を含む): 35610433536

約数和(自身を除く): 14922884458

約数列:

[1, 2, 7, 14, 313, 626, 2143, 2191, 2203, 4286, 4382, 4406, 15001, 15421, 30002, 30842, 670759, 689539, 1341518, 1379078, 4695313, 4721029, 4826773, 9390626, 9442058, 9653546, 33047203, 66094406, 1477682077, 2955364154, 10343774539, 20687549078]

約数ペア:

[(1, 20687549078), (2, 10343774539), (7, 2955364154), (14, 1477682077), (313, 66094406), (626, 33047203), (2143, 9653546), (2191, 9442058), (2203, 9390626), (4286, 4826773), (4382, 4721029), (4406, 4695313), (15001, 1379078), (15421, 1341518), (30002, 689539), (30842, 670759)]