16747975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:435

約数の個数: 24

約数和(自身を含む): 22217328

約数和(自身を除く): 5469353

約数列:

[1, 5, 17, 25, 85, 157, 251, 425, 785, 1255, 2669, 3925, 4267, 6275, 13345, 21335, 39407, 66725, 106675, 197035, 669919, 985175, 3349595, 16747975]

約数ペア:

[(1, 16747975), (5, 3349595), (17, 985175), (25, 669919), (85, 197035), (157, 106675), (251, 66725), (425, 39407), (785, 21335), (1255, 13345), (2669, 6275), (3925, 4267)]