64721805

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{253811}}^1$

素因数の和:253836

約数の個数: 16

約数和(自身を含む): 109646784

約数和(自身を除く): 44924979

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 253811, 761433, 1269055, 3807165, 4314787, 12944361, 21573935, 64721805]

約数ペア:

[(1, 64721805), (3, 21573935), (5, 12944361), (15, 4314787), (17, 3807165), (51, 1269055), (85, 761433), (255, 253811)]