216405

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{229}}^1$

素因数の和:250

約数の個数: 32

約数和(自身を含む): 441600

約数和(自身を除く): 225195

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 229, 315, 687, 945, 1145, 1603, 2061, 3435, 4809, 6183, 8015, 10305, 14427, 24045, 30915, 43281, 72135, 216405]

約数ペア:

[(1, 216405), (3, 72135), (5, 43281), (7, 30915), (9, 24045), (15, 14427), (21, 10305), (27, 8015), (35, 6183), (45, 4809), (63, 3435), (105, 2061), (135, 1603), (189, 1145), (229, 945), (315, 687)]