311911317

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{81931}}^1$

素因数の和:81990

約数の個数: 20

約数和(自身を含む): 475861056

約数和(自身を除く): 163949739

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 81931, 245793, 737379, 2212137, 3850757, 6636411, 11552271, 34656813, 103970439, 311911317]

約数ペア:

[(1, 311911317), (3, 103970439), (9, 34656813), (27, 11552271), (47, 6636411), (81, 3850757), (141, 2212137), (423, 737379), (1269, 245793), (3807, 81931)]