47721231

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{15923}}^1$

素因数の和:15972

約数の個数: 20

約数和(自身を含む): 73218552

約数和(自身を除く): 25497321

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 15923, 47769, 143307, 429921, 589151, 1289763, 1767453, 5302359, 15907077, 47721231]

約数ペア:

[(1, 47721231), (3, 15907077), (9, 5302359), (27, 1767453), (37, 1289763), (81, 589151), (111, 429921), (333, 143307), (999, 47769), (2997, 15923)]