40111281

素因数分解:

$3^5\times 7^1\times {\mathrm{23581}}^1$

素因数の和:23603

約数の個数: 24

約数和(自身を含む): 68670784

約数和(自身を除く): 28559503

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 23581, 70743, 165067, 212229, 495201, 636687, 1485603, 1910061, 4456809, 5730183, 13370427, 40111281]

約数ペア:

[(1, 40111281), (3, 13370427), (7, 5730183), (9, 4456809), (21, 1910061), (27, 1485603), (63, 636687), (81, 495201), (189, 212229), (243, 165067), (567, 70743), (1701, 23581)]