1611981

素因数分解:

$3^4\times 7^1\times {\mathrm{2843}}^1$

素因数の和:2862

約数の個数: 20

約数和(自身を含む): 2752992

約数和(自身を除く): 1141011

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 2843, 8529, 19901, 25587, 59703, 76761, 179109, 230283, 537327, 1611981]

約数ペア:

[(1, 1611981), (3, 537327), (7, 230283), (9, 179109), (21, 76761), (27, 59703), (63, 25587), (81, 19901), (189, 8529), (567, 2843)]