21271078

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{1289}}^1$

素因数の和:1551

約数の個数: 16

約数和(自身を含む): 32941440

約数和(自身を除く): 11670362

約数列:

[1, 2, 37, 74, 223, 446, 1289, 2578, 8251, 16502, 47693, 95386, 287447, 574894, 10635539, 21271078]

約数ペア:

[(1, 21271078), (2, 10635539), (37, 574894), (74, 287447), (223, 95386), (446, 47693), (1289, 16502), (2578, 8251)]