21037564805

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1\times {\mathrm{7517}}^1$

素因数の和:7813

約数の個数: 32

約数和(自身を含む): 26306985600

約数和(自身を除く): 5269420795

約数列:

[1, 5, 53, 59, 179, 265, 295, 895, 3127, 7517, 9487, 10561, 15635, 37585, 47435, 52805, 398401, 443503, 559733, 1345543, 1992005, 2217515, 2798665, 6727715, 23505659, 71313779, 79387037, 117528295, 356568895, 396935185, 4207512961, 21037564805]

約数ペア:

[(1, 21037564805), (5, 4207512961), (53, 396935185), (59, 356568895), (179, 117528295), (265, 79387037), (295, 71313779), (895, 23505659), (3127, 6727715), (7517, 2798665), (9487, 2217515), (10561, 1992005), (15635, 1345543), (37585, 559733), (47435, 443503), (52805, 398401)]