69842689

素因数分解:

$7^4\times {\mathrm{19}}^1\times {\mathrm{1531}}^1$

素因数の和:1578

約数の個数: 20

約数和(自身を含む): 85822640

約数和(自身を除く): 15979951

約数列:

[1, 7, 19, 49, 133, 343, 931, 1531, 2401, 6517, 10717, 29089, 45619, 75019, 203623, 525133, 1425361, 3675931, 9977527, 69842689]

約数ペア:

[(1, 69842689), (7, 9977527), (19, 3675931), (49, 1425361), (133, 525133), (343, 203623), (931, 75019), (1531, 45619), (2401, 29089), (6517, 10717)]