213345

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1$

素因数の和:453

約数の個数: 24

約数和(自身を含む): 404352

約数和(自身を除く): 191007

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 431, 495, 1293, 2155, 3879, 4741, 6465, 14223, 19395, 23705, 42669, 71115, 213345]

約数ペア:

[(1, 213345), (3, 71115), (5, 42669), (9, 23705), (11, 19395), (15, 14223), (33, 6465), (45, 4741), (55, 3879), (99, 2155), (165, 1293), (431, 495)]