20921496963

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{1515721}}^1$

素因数の和:1515874

約数の個数: 16

約数和(自身を含む): 28810843776

約数和(自身を除く): 7889346813

約数列:

[1, 3, 43, 107, 129, 321, 4601, 13803, 1515721, 4547163, 65176003, 162182147, 195528009, 486546441, 6973832321, 20921496963]

約数ペア:

[(1, 20921496963), (3, 6973832321), (43, 486546441), (107, 195528009), (129, 162182147), (321, 65176003), (4601, 4547163), (13803, 1515721)]