21074645

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6701}}^1$

素因数の和:6760

約数の個数: 16

約数和(自身を含む): 27505008

約数和(自身を除く): 6430363

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 6701, 33505, 113917, 247937, 569585, 1239685, 4214929, 21074645]

約数ペア:

[(1, 21074645), (5, 4214929), (17, 1239685), (37, 569585), (85, 247937), (185, 113917), (629, 33505), (3145, 6701)]