1997055

素因数分解:

$3^4\times 5^1\times {\mathrm{4931}}^1$

素因数の和:4948

約数の個数: 20

約数和(自身を含む): 3580632

約数和(自身を除く): 1583577

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4931, 14793, 24655, 44379, 73965, 133137, 221895, 399411, 665685, 1997055]

約数ペア:

[(1, 1997055), (3, 665685), (5, 399411), (9, 221895), (15, 133137), (27, 73965), (45, 44379), (81, 24655), (135, 14793), (405, 4931)]