19681685015

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2952991}}^1$

素因数の和:2953070

約数の個数: 16

約数和(自身を含む): 24946876416

約数和(自身を除く): 5265191401

約数列:

[1, 5, 31, 43, 155, 215, 1333, 6665, 2952991, 14764955, 91542721, 126978613, 457713605, 634893065, 3936337003, 19681685015]

約数ペア:

[(1, 19681685015), (5, 3936337003), (31, 634893065), (43, 457713605), (155, 126978613), (215, 91542721), (1333, 14764955), (6665, 2952991)]