863870427

素因数分解:

$3^4\times 7^1\times {\mathrm{1523581}}^1$

素因数の和:1523600

約数の個数: 20

約数和(自身を含む): 1474827376

約数和(自身を除く): 610956949

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1523581, 4570743, 10665067, 13712229, 31995201, 41136687, 95985603, 123410061, 287956809, 863870427]

約数ペア:

[(1, 863870427), (3, 287956809), (7, 123410061), (9, 95985603), (21, 41136687), (27, 31995201), (63, 13712229), (81, 10665067), (189, 4570743), (567, 1523581)]