21190377

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{28597}}^1$

素因数の和:28632

約数の個数: 16

約数和(自身を含む): 32029760

約数和(自身を除く): 10839383

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 28597, 85791, 371761, 543343, 1115283, 1630029, 7063459, 21190377]

約数ペア:

[(1, 21190377), (3, 7063459), (13, 1630029), (19, 1115283), (39, 543343), (57, 371761), (247, 85791), (741, 28597)]