2154.000000

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 1635840

約数和(自身を除く): 757125

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 283, 345, 621, 849, 1035, 1415, 2547, 3105, 4245, 6509, 7641, 12735, 19527, 32545, 38205, 58581, 97635, 175743, 292905, 878715]

約数ペア:

[(1, 878715), (3, 292905), (5, 175743), (9, 97635), (15, 58581), (23, 38205), (27, 32545), (45, 19527), (69, 12735), (115, 7641), (135, 6509), (207, 4245), (283, 3105), (345, 2547), (621, 1415), (849, 1035)]